Merge remote-tracking branch 'origin/dev' into wip/scenegraphng

Conflicts:
	src/quick/items/qquickopenglshadereffectnode.cpp
	src/quick/items/qquickshadereffect.cpp
	src/quick/scenegraph/coreapi/qsgbatchrenderer_p.h
	src/quick/scenegraph/qsgdefaultglyphnode_p.h

Change-Id: I3d6874b4e4231a89d2836c04fe8e7f2ef2d698c4

50 files changed, 972 insertions, 557 deletions

diff --git a/src/quick/designer/qqmldesignermetaobject.cpp b/src/quick/designer/qqmldesignermetaobject.cpp
index 46808f978b..63b4102b10 100644
--- a/src/quick/designer/qqmldesignermetaobject.cpp
+++ b/src/quick/designer/qqmldesignermetaobject.cpp
@@ -79,23 +79,9 @@ struct MetaPropertyData {
     QVector<QPair<QVariant, bool> > m_data;
 };
 
-static bool constructedMetaData(const QQmlVMEMetaData* data)
-{
-    return data->propertyCount == 0
-            && data->aliasCount == 0
-            && data->signalCount == 0
-            && data->methodCount == 0;
-}
-
 static QQmlVMEMetaData* fakeMetaData()
 {
-    QQmlVMEMetaData* data = new QQmlVMEMetaData;
-    data->propertyCount = 0;
-    data->aliasCount = 0;
-    data->signalCount = 0;
-    data->methodCount = 0;
-
-    return data;
+    return new QQmlVMEMetaData;
 }
 
 static const QQmlVMEMetaData* vMEMetaDataForObject(QObject *object)
@@ -125,7 +111,15 @@ QQmlDesignerMetaObject* QQmlDesignerMetaObject::getNodeInstanceMetaObject(QObjec
         return static_cast<QQmlDesignerMetaObject *>(parent);
 
     // we just create one and the ownership goes automatically to the object in nodeinstance see init method
-    return new QQmlDesignerMetaObject(object, engine);
+
+    QQmlData *ddata = QQmlData::get(object, false);
+
+    const bool hadVMEMetaObject = ddata ? ddata->hasVMEMetaObject : false;
+    QQmlDesignerMetaObject *mo = new QQmlDesignerMetaObject(object, engine);
+    //If our parent is not a VMEMetaObject we just set the flag to false again
+    if (ddata)
+        ddata->hasVMEMetaObject = hadVMEMetaObject;
+    return mo;
 }
 
 void QQmlDesignerMetaObject::init(QObject *object, QQmlEngine *engine)
@@ -140,20 +134,20 @@ void QQmlDesignerMetaObject::init(QObject *object, QQmlEngine *engine)
     QObjectPrivate *op = QObjectPrivate::get(object);
     op->metaObject = this;
 
-    //create cache
-    cache = m_cache = QQmlEnginePrivate::get(engine)->cache(this);
-    cache->addref();
+    m_cache = QQmlEnginePrivate::get(engine)->cache(this);
 
-    //If our parent is not a VMEMetaObject we just se the flag to false again
-    if (constructedMetaData(metaData))
-        QQmlData::get(object)->hasVMEMetaObject = false;
+    if (m_cache != cache) {
+        m_cache->addref();
+        cache->release();
+        cache = m_cache;
+    }
 
     nodeInstanceMetaObjectList.insert(this, true);
     hasAssignedMetaObjectData = true;
 }
 
 QQmlDesignerMetaObject::QQmlDesignerMetaObject(QObject *object, QQmlEngine *engine)
-    : QQmlVMEMetaObject(object, cacheForObject(object, engine), vMEMetaDataForObject(object)),
+    : QQmlVMEMetaObject(object, cacheForObject(object, engine), vMEMetaDataForObject(object), /*qml compilation unit*/nullptr, /*qmlObjectId*/-1),
       m_context(engine->contextForObject(object)),
       m_data(new MetaPropertyData),
       m_cache(0)
@@ -161,22 +155,20 @@ QQmlDesignerMetaObject::QQmlDesignerMetaObject(QObject *object, QQmlEngine *engi
     init(object, engine);
 
     QQmlData *ddata = QQmlData::get(object, false);
-
     //Assign cache to object
     if (ddata && ddata->propertyCache) {
         cache->setParent(ddata->propertyCache);
         cache->invalidate(engine, this);
+        ddata->propertyCache->release();
         ddata->propertyCache = m_cache;
+        m_cache->addref();
     }
 
 }
 
 QQmlDesignerMetaObject::~QQmlDesignerMetaObject()
 {
-    if (cache->count() > 1) // qml is crashing because the property cache is not removed from the engine
-        cache->release();
-    else
-        m_type->release();
+    m_type->release();
 
     nodeInstanceMetaObjectList.remove(this);
 }
diff --git a/src/quick/designer/qqmldesignermetaobject_p.h b/src/quick/designer/qqmldesignermetaobject_p.h
index c45f83dc1e..a5402ccbc4 100644
--- a/src/quick/designer/qqmldesignermetaobject_p.h
+++ b/src/quick/designer/qqmldesignermetaobject_p.h
@@ -70,7 +70,6 @@ public:
     static void registerNotifyPropertyChangeCallBack(void (*callback)(QObject*, const QQuickDesignerSupport::PropertyName &propertyName));
 
 protected:
-    QQmlDesignerMetaObject(QObject *object, QQmlEngine *engine);
     static QQmlDesignerMetaObject* getNodeInstanceMetaObject(QObject *object, QQmlEngine *engine);
 
     void createNewDynamicProperty(const QString &name);
@@ -95,6 +94,7 @@ protected:
     void copyTypeMetaObject();
 
 private:
+    QQmlDesignerMetaObject(QObject *object, QQmlEngine *engine);
     void init(QObject *, QQmlEngine *engine);
 
     QPointer<QQmlContext> m_context;
diff --git a/src/quick/designer/qquickdesignersupport.cpp b/src/quick/designer/qquickdesignersupport.cpp
index ec00eed18a..f063cd3a81 100644
--- a/src/quick/designer/qquickdesignersupport.cpp
+++ b/src/quick/designer/qquickdesignersupport.cpp
@@ -189,17 +189,17 @@ QTransform QQuickDesignerSupport::parentTransform(QQuickItem *referencedItem)
     return parentTransform;
 }
 
-QString propertyNameForAnchorLine(const QQuickAnchorLine::AnchorLine &anchorLine)
+QString propertyNameForAnchorLine(const QQuickAnchors::Anchor &anchorLine)
 {
     switch (anchorLine) {
-        case QQuickAnchorLine::Left: return QLatin1String("left");
-        case QQuickAnchorLine::Right: return QLatin1String("right");
-        case QQuickAnchorLine::Top: return QLatin1String("top");
-        case QQuickAnchorLine::Bottom: return QLatin1String("bottom");
-        case QQuickAnchorLine::HCenter: return QLatin1String("horizontalCenter");
-        case QQuickAnchorLine::VCenter: return QLatin1String("verticalCenter");
-        case QQuickAnchorLine::Baseline: return QLatin1String("baseline");
-        case QQuickAnchorLine::Invalid:
+        case QQuickAnchors::LeftAnchor: return QLatin1String("left");
+        case QQuickAnchors::RightAnchor: return QLatin1String("right");
+        case QQuickAnchors::TopAnchor: return QLatin1String("top");
+        case QQuickAnchors::BottomAnchor: return QLatin1String("bottom");
+        case QQuickAnchors::HCenterAnchor: return QLatin1String("horizontalCenter");
+        case QQuickAnchors::VCenterAnchor: return QLatin1String("verticalCenter");
+        case QQuickAnchors::BaselineAnchor: return QLatin1String("baseline");
+        case QQuickAnchors::InvalidAnchor: // fallthrough:
         default: return QString();
     }
 }
@@ -345,7 +345,7 @@ QPair<QString, QObject*> QQuickDesignerSupport::anchorLineTarget(QQuickItem *ite
             return QPair<QString, QObject*>();
 
         QQuickAnchorLine anchorLine = metaProperty.read().value<QQuickAnchorLine>();
-        if (anchorLine.anchorLine != QQuickAnchorLine::Invalid) {
+        if (anchorLine.anchorLine != QQuickAnchors::InvalidAnchor) {
             targetObject = anchorLine.item;
             targetName = propertyNameForAnchorLine(anchorLine.anchorLine);
         }
diff --git a/src/quick/doc/snippets/qml/externaldrag.qml b/src/quick/doc/snippets/qml/externaldrag.qml
new file mode 100644
index 0000000000..096a7702b4
--- /dev/null
+++ b/src/quick/doc/snippets/qml/externaldrag.qml
@@ -0,0 +1,76 @@
+/****************************************************************************
+**
+** Copyright (C) 2016 The Qt Company Ltd.
+** Contact: http://www.qt.io/licensing/
+**
+** This file is part of the documentation of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:BSD$
+** You may use this file under the terms of the BSD license as follows:
+**
+** "Redistribution and use in source and binary forms, with or without
+** modification, are permitted provided that the following conditions are
+** met:
+**   * Redistributions of source code must retain the above copyright
+**     notice, this list of conditions and the following disclaimer.
+**   * Redistributions in binary form must reproduce the above copyright
+**     notice, this list of conditions and the following disclaimer in
+**     the documentation and/or other materials provided with the
+**     distribution.
+**   * Neither the name of The Qt Company Ltd nor the names of its
+**     contributors may be used to endorse or promote products derived
+**     from this software without specific prior written permission.
+**
+**
+** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+//![0]
+import QtQuick 2.8
+
+Item {
+    width: 200; height: 200
+
+    Rectangle {
+        anchors.centerIn: parent
+        width: text.implicitWidth + 20; height: text.implicitHeight + 10
+        color: "green"
+        radius: 5
+
+        Drag.active: dragArea.drag.active
+        Drag.dragType: Drag.Automatic
+        Drag.supportedActions: Qt.CopyAction
+        Drag.mimeData: {
+            "text/plain": "Copied text"
+        }
+
+        Text {
+            id: text
+            anchors.centerIn: parent
+            text: "Drag me"
+        }
+
+        MouseArea {
+            id: dragArea
+            anchors.fill: parent
+
+            drag.target: parent
+            onPressed: parent.grabToImage(function(result) {
+                parent.Drag.imageSource = result.url
+            })
+        }
+    }
+}
+//![0]
diff --git a/src/quick/items/context2d/qquickcontext2d.cpp b/src/quick/items/context2d/qquickcontext2d.cpp
index b43adac0c5..7e7b1fa062 100644
--- a/src/quick/items/context2d/qquickcontext2d.cpp
+++ b/src/quick/items/context2d/qquickcontext2d.cpp
@@ -66,6 +66,7 @@
 #include <private/qv4scopedvalue_p.h>
 
 #include <QtCore/qmath.h>
+#include <QtCore/qvector.h>
 #include <QtCore/private/qnumeric_p.h>
 #include <QtCore/QRunnable>
 #include <QtGui/qguiapplication.h>
@@ -205,7 +206,7 @@ QColor qt_color_from_string(const QV4::Value &name)
     return QColor();
 }
 
-static int qParseFontSizeFromToken(const QString &fontSizeToken, bool &ok)
+static int qParseFontSizeFromToken(const QStringRef &fontSizeToken, bool &ok)
 {
     ok = false;
     float size = fontSizeToken.trimmed().toFloat(&ok);
@@ -221,11 +222,11 @@ static int qParseFontSizeFromToken(const QString &fontSizeToken, bool &ok)
     \c true if successful. If the font size is invalid, \c false is returned
     and a warning is printed.
 */
-static bool qSetFontSizeFromToken(QFont &font, const QString &fontSizeToken)
+static bool qSetFontSizeFromToken(QFont &font, const QStringRef &fontSizeToken)
 {
-    const QString trimmedToken = fontSizeToken.trimmed();
-    const QString unitStr = trimmedToken.right(2);
-    const QString value = trimmedToken.left(trimmedToken.size() - 2);
+    const QStringRef trimmedToken = fontSizeToken.trimmed();
+    const QStringRef unitStr = trimmedToken.right(2);
+    const QStringRef value = trimmedToken.left(trimmedToken.size() - 2);
     bool ok = false;
     int size = 0;
     if (unitStr == QLatin1String("px")) {
@@ -251,7 +252,7 @@ static bool qSetFontSizeFromToken(QFont &font, const QString &fontSizeToken)
     each family is separated by spaces. Families with spaces in their name
     must be quoted.
 */
-static QStringList qExtractFontFamiliesFromString(const QString &fontFamiliesString)
+static QStringList qExtractFontFamiliesFromString(const QStringRef &fontFamiliesString)
 {
     QStringList extractedFamilies;
     int quoteIndex = -1;
@@ -264,7 +265,7 @@ static QStringList qExtractFontFamiliesFromString(const QString &fontFamiliesStr
             } else {
                 if (ch == fontFamiliesString.at(quoteIndex)) {
                     // Found the matching quote. +1/-1 because we don't want the quote as part of the name.
-                    const QString family = fontFamiliesString.mid(quoteIndex + 1, index - quoteIndex - 1);
+                    const QString family = fontFamiliesString.mid(quoteIndex + 1, index - quoteIndex - 1).toString();
                     extractedFamilies.push_back(family);
                     currentFamily.clear();
                     quoteIndex = -1;
@@ -395,16 +396,17 @@ static QFont qt_font_from_string(const QString& fontString, const QFont &current
     fontSizeEnd += 3;
 
     QFont newFont;
-    if (!qSetFontSizeFromToken(newFont, fontString.mid(fontSizeStart, fontSizeEnd - fontSizeStart)))
+    if (!qSetFontSizeFromToken(newFont, fontString.midRef(fontSizeStart, fontSizeEnd - fontSizeStart)))
         return currentFont;
 
     // We don't want to parse the size twice, so remove it now.
     QString remainingFontString = fontString;
     remainingFontString.remove(fontSizeStart, fontSizeEnd - fontSizeStart);
+    QStringRef remainingFontStringRef(&remainingFontString);
 
     // Next, we have to take any font families out, as QString::split() will ruin quoted family names.
-    const QString fontFamiliesString = remainingFontString.mid(fontSizeStart);
-    remainingFontString.chop(remainingFontString.length() - fontSizeStart);
+    const QStringRef fontFamiliesString = remainingFontStringRef.mid(fontSizeStart);
+    remainingFontStringRef.truncate(fontSizeStart);
     QStringList fontFamilies = qExtractFontFamiliesFromString(fontFamiliesString);
     if (fontFamilies.isEmpty()) {
         return currentFont;
@@ -413,16 +415,16 @@ static QFont qt_font_from_string(const QString& fontString, const QFont &current
         return currentFont;
 
     // Now that we've removed the messy parts, we can split the font string on spaces.
-    const QString trimmedTokensStr = remainingFontString.trimmed();
+    const QStringRef trimmedTokensStr = remainingFontStringRef.trimmed();
     if (trimmedTokensStr.isEmpty()) {
         // No optional properties.
         return newFont;
     }
-    const QStringList tokens = trimmedTokensStr.split(QLatin1Char(' '));
+    const auto tokens = trimmedTokensStr.split(QLatin1Char(' '));
 
     int usedTokens = NoTokens;
     // Optional properties can be in any order, but font-size and font-family must be last.
-    for (const QString &token : tokens) {
+    for (const QStringRef &token : tokens) {
         if (token.compare(QLatin1String("normal")) == 0) {
             if (!(usedTokens & FontStyle) || !(usedTokens & FontVariant) || !(usedTokens & FontWeight)) {
                 // Could be font-style, font-variant or font-weight.
@@ -943,7 +945,7 @@ static QV4::ReturnedValue qt_create_image_data(qreal w, qreal h, QV4::ExecutionE
         pixelData->d()->image = QImage(w, h, QImage::Format_ARGB32);
         pixelData->d()->image.fill(0x00000000);
     } else {
-        Q_ASSERT(image.width() == int(w) && image.height() == int(h));
+        Q_ASSERT(image.width() == qRound(w) && image.height() == qRound(h));
         pixelData->d()->image = image.format() == QImage::Format_ARGB32 ? image : image.convertToFormat(QImage::Format_ARGB32);
     }
 
@@ -1263,7 +1265,7 @@ QV4::ReturnedValue QQuickJSContext2D::method_set_globalAlpha(QV4::CallContext *c
 
     double globalAlpha = ctx->argc() ? ctx->args()[0].toNumber() : qt_qnan();
 
-    if (!qIsFinite(globalAlpha))
+    if (!qt_is_finite(globalAlpha))
         return QV4::Encode::undefined();
 
     if (globalAlpha >= 0.0 && globalAlpha <= 1.0 && r->d()->context->state.globalAlpha != globalAlpha) {
@@ -1547,10 +1549,10 @@ QV4::ReturnedValue QQuickJSContext2DPrototype::method_createLinearGradient(QV4::
         qreal x1 = ctx->args()[2].toNumber();
         qreal y1 = ctx->args()[3].toNumber();
 
-        if (!qIsFinite(x0)
-         || !qIsFinite(y0)
-         || !qIsFinite(x1)
-         || !qIsFinite(y1)) {
+        if (!qt_is_finite(x0)
+         || !qt_is_finite(y0)
+         || !qt_is_finite(x1)
+         || !qt_is_finite(y1)) {
             V4THROW_DOM(DOMEXCEPTION_NOT_SUPPORTED_ERR, "createLinearGradient(): Incorrect arguments")
         }
         QQuickContext2DEngineData *ed = engineData(scope.engine);
@@ -1592,12 +1594,12 @@ QV4::ReturnedValue QQuickJSContext2DPrototype::method_createRadialGradient(QV4::
         qreal y1 = ctx->args()[4].toNumber();
         qreal r1 = ctx->args()[5].toNumber();
 
-        if (!qIsFinite(x0)
-         || !qIsFinite(y0)
-         || !qIsFinite(x1)
-         || !qIsFinite(r0)
-         || !qIsFinite(r1)
-         || !qIsFinite(y1)) {
+        if (!qt_is_finite(x0)
+         || !qt_is_finite(y0)
+         || !qt_is_finite(x1)
+         || !qt_is_finite(r0)
+         || !qt_is_finite(r1)
+         || !qt_is_finite(y1)) {
             V4THROW_DOM(DOMEXCEPTION_NOT_SUPPORTED_ERR, "createRadialGradient(): Incorrect arguments")
         }
 
@@ -1639,11 +1641,11 @@ QV4::ReturnedValue QQuickJSContext2DPrototype::method_createConicalGradient(QV4:
         qreal x = ctx->args()[0].toNumber();
         qreal y = ctx->args()[1].toNumber();
         qreal angle = DEGREES(ctx->args()[2].toNumber());
-        if (!qIsFinite(x) || !qIsFinite(y)) {
+        if (!qt_is_finite(x) || !qt_is_finite(y)) {
             V4THROW_DOM(DOMEXCEPTION_NOT_SUPPORTED_ERR, "createConicalGradient(): Incorrect arguments");
         }
 
-        if (!qIsFinite(angle)) {
+        if (!qt_is_finite(angle)) {
             V4THROW_DOM(DOMEXCEPTION_INDEX_SIZE_ERR, "createConicalGradient(): Incorrect arguments");
         }
 
@@ -1894,7 +1896,7 @@ QV4::ReturnedValue QQuickJSContext2D::method_set_lineWidth(QV4::CallContext *ctx
 
     qreal w = ctx->argc() ? ctx->args()[0].toNumber() : -1;
 
-    if (w > 0 && qIsFinite(w) && w != r->d()->context->state.lineWidth) {
+    if (w > 0 && qt_is_finite(w) && w != r->d()->context->state.lineWidth) {
         r->d()->context->state.lineWidth = w;
         r->d()->context->buffer()->setLineWidth(w);
     }
@@ -1923,7 +1925,7 @@ QV4::ReturnedValue QQuickJSContext2D::method_set_miterLimit(QV4::CallContext *ct
 
     qreal ml = ctx->argc() ? ctx->args()[0].toNumber() : -1;
 
-    if (ml > 0 && qIsFinite(ml) && ml != r->d()->context->state.miterLimit) {
+    if (ml > 0 && qt_is_finite(ml) && ml != r->d()->context->state.miterLimit) {
         r->d()->context->state.miterLimit = ml;
         r->d()->context->buffer()->setMiterLimit(ml);
     }
@@ -1952,7 +1954,7 @@ QV4::ReturnedValue QQuickJSContext2D::method_set_shadowBlur(QV4::CallContext *ct
 
     qreal blur = ctx->argc() ? ctx->args()[0].toNumber() : -1;
 
-    if (blur > 0 && qIsFinite(blur) && blur != r->d()->context->state.shadowBlur) {
+    if (blur > 0 && qt_is_finite(blur) && blur != r->d()->context->state.shadowBlur) {
         r->d()->context->state.shadowBlur = blur;
         r->d()->context->buffer()->setShadowBlur(blur);
     }
@@ -2012,7 +2014,7 @@ QV4::ReturnedValue QQuickJSContext2D::method_set_shadowOffsetX(QV4::CallContext
     CHECK_CONTEXT_SETTER(r)
 
     qreal offsetX = ctx->argc() ? ctx->args()[0].toNumber() : qt_qnan();
-    if (qIsFinite(offsetX) && offsetX != r->d()->context->state.shadowOffsetX) {
+    if (qt_is_finite(offsetX) && offsetX != r->d()->context->state.shadowOffsetX) {
         r->d()->context->state.shadowOffsetX = offsetX;
         r->d()->context->buffer()->setShadowOffsetX(offsetX);
     }
@@ -2040,7 +2042,7 @@ QV4::ReturnedValue QQuickJSContext2D::method_set_shadowOffsetY(QV4::CallContext
     CHECK_CONTEXT_SETTER(r)
 
     qreal offsetY = ctx->argc() ? ctx->args()[0].toNumber() : qt_qnan();
-    if (qIsFinite(offsetY) && offsetY != r->d()->context->state.shadowOffsetY) {
+    if (qt_is_finite(offsetY) && offsetY != r->d()->context->state.shadowOffsetY) {
         r->d()->context->state.shadowOffsetY = offsetY;
         r->d()->context->buffer()->setShadowOffsetY(offsetY);
     }
@@ -2170,7 +2172,7 @@ QV4::ReturnedValue QQuickJSContext2DPrototype::method_arc(QV4::CallContext *ctx)
 
         qreal radius = ctx->args()[2].toNumber();
 
-        if (qIsFinite(radius) && radius < 0)
+        if (qt_is_finite(radius) && radius < 0)
            V4THROW_DOM(DOMEXCEPTION_INDEX_SIZE_ERR, "Incorrect argument radius");
 
         r->d()->context->arc(ctx->args()[0].toNumber(),
@@ -2216,7 +2218,7 @@ QV4::ReturnedValue QQuickJSContext2DPrototype::method_arcTo(QV4::CallContext *ct
     if (ctx->argc() >= 5) {
         qreal radius = ctx->args()[4].toNumber();
 
-        if (qIsFinite(radius) && radius < 0)
+        if (qt_is_finite(radius) && radius < 0)
            V4THROW_DOM(DOMEXCEPTION_INDEX_SIZE_ERR, "Incorrect argument radius");
 
         r->d()->context->arcTo(ctx->args()[0].toNumber(),
@@ -2279,7 +2281,7 @@ QV4::ReturnedValue QQuickJSContext2DPrototype::method_bezierCurveTo(QV4::CallCon
         qreal x = ctx->args()[4].toNumber();
         qreal y = ctx->args()[5].toNumber();
 
-        if (!qIsFinite(cp1x) || !qIsFinite(cp1y) || !qIsFinite(cp2x) || !qIsFinite(cp2y) || !qIsFinite(x) || !qIsFinite(y))
+        if (!qt_is_finite(cp1x) || !qt_is_finite(cp1y) || !qt_is_finite(cp2x) || !qt_is_finite(cp2y) || !qt_is_finite(x) || !qt_is_finite(y))
             return ctx->thisObject().asReturnedValue();
 
         r->d()->context->bezierCurveTo(cp1x, cp1y, cp2x, cp2y, x, y);
@@ -2375,7 +2377,7 @@ QV4::ReturnedValue QQuickJSContext2DPrototype::method_lineTo(QV4::CallContext *c
         qreal x = ctx->args()[0].toNumber();
         qreal y = ctx->args()[1].toNumber();
 
-        if (!qIsFinite(x) || !qIsFinite(y))
+        if (!qt_is_finite(x) || !qt_is_finite(y))
             return ctx->thisObject().asReturnedValue();
 
         r->d()->context->lineTo(x, y);
@@ -2399,7 +2401,7 @@ QV4::ReturnedValue QQuickJSContext2DPrototype::method_moveTo(QV4::CallContext *c
         qreal x = ctx->args()[0].toNumber();
         qreal y = ctx->args()[1].toNumber();
 
-        if (!qIsFinite(x) || !qIsFinite(y))
+        if (!qt_is_finite(x) || !qt_is_finite(y))
             return ctx->thisObject().asReturnedValue();
         r->d()->context->moveTo(x, y);
     }
@@ -2425,7 +2427,7 @@ QV4::ReturnedValue QQuickJSContext2DPrototype::method_quadraticCurveTo(QV4::Call
         qreal x = ctx->args()[2].toNumber();
         qreal y = ctx->args()[3].toNumber();
 
-        if (!qIsFinite(cpx) || !qIsFinite(cpy) || !qIsFinite(x) || !qIsFinite(y))
+        if (!qt_is_finite(cpx) || !qt_is_finite(cpy) || !qt_is_finite(x) || !qt_is_finite(y))
             return ctx->thisObject().asReturnedValue();
 
         r->d()->context->quadraticCurveTo(cpx, cpy, x, y);
@@ -2509,7 +2511,7 @@ QV4::ReturnedValue QQuickJSContext2DPrototype::method_text(QV4::CallContext *ctx
         qreal x = ctx->args()[1].toNumber();
         qreal y = ctx->args()[2].toNumber();
 
-        if (!qIsFinite(x) || !qIsFinite(y))
+        if (!qt_is_finite(x) || !qt_is_finite(y))
             return ctx->thisObject().asReturnedValue();
         r->d()->context->text(ctx->args()[0].toQStringNoThrow(), x, y);
     }
@@ -2774,7 +2776,7 @@ QV4::ReturnedValue QQuickJSContext2DPrototype::method_fillText(QV4::CallContext
     if (ctx->argc() >= 3) {
         qreal x = ctx->args()[1].toNumber();
         qreal y = ctx->args()[2].toNumber();
-        if (!qIsFinite(x) || !qIsFinite(y))
+        if (!qt_is_finite(x) || !qt_is_finite(y))
             return ctx->thisObject().asReturnedValue();
         QPainterPath textPath = r->d()->context->createTextGlyphs(x, y, ctx->args()[0].toQStringNoThrow());
         r->d()->context->buffer()->fill(textPath);
@@ -2973,14 +2975,14 @@ QV4::ReturnedValue QQuickJSContext2DPrototype::method_drawImage(QV4::CallContext
         return ctx->thisObject().asReturnedValue();
     }
 
-    if (!qIsFinite(sx)
-     || !qIsFinite(sy)
-     || !qIsFinite(sw)
-     || !qIsFinite(sh)
-     || !qIsFinite(dx)
-     || !qIsFinite(dy)
-     || !qIsFinite(dw)
-     || !qIsFinite(dh))
+    if (!qt_is_finite(sx)
+     || !qt_is_finite(sy)
+     || !qt_is_finite(sw)
+     || !qt_is_finite(sh)
+     || !qt_is_finite(dx)
+     || !qt_is_finite(dy)
+     || !qt_is_finite(dw)
+     || !qt_is_finite(dh))
         return ctx->thisObject().asReturnedValue();
 
     if (sx < 0
@@ -3201,7 +3203,7 @@ QV4::ReturnedValue QQuickJSContext2DPrototype::method_createImageData(QV4::CallC
         qreal w = ctx->args()[0].toNumber();
         qreal h = ctx->args()[1].toNumber();
 
-        if (!qIsFinite(w) || !qIsFinite(h))
+        if (!qt_is_finite(w) || !qt_is_finite(h))
             V4THROW_DOM(DOMEXCEPTION_NOT_SUPPORTED_ERR, "createImageData(): invalid arguments");
 
         if (w > 0 && h > 0)
@@ -3227,7 +3229,7 @@ QV4::ReturnedValue QQuickJSContext2DPrototype::method_getImageData(QV4::CallCont
         qreal y = ctx->args()[1].toNumber();
         qreal w = ctx->args()[2].toNumber();
         qreal h = ctx->args()[3].toNumber();
-        if (!qIsFinite(x) || !qIsFinite(y) || !qIsFinite(w) || !qIsFinite(h))
+        if (!qt_is_finite(x) || !qt_is_finite(y) || !qt_is_finite(w) || !qt_is_finite(h))
             V4THROW_DOM(DOMEXCEPTION_NOT_SUPPORTED_ERR, "getImageData(): Invalid arguments");
 
         if (w <= 0 || h <= 0)
@@ -3259,7 +3261,7 @@ QV4::ReturnedValue QQuickJSContext2DPrototype::method_putImageData(QV4::CallCont
     qreal dy = ctx->args()[2].toNumber();
     qreal w, h, dirtyX, dirtyY, dirtyWidth, dirtyHeight;
 
-    if (!qIsFinite(dx) || !qIsFinite(dy))
+    if (!qt_is_finite(dx) || !qt_is_finite(dy))
         V4THROW_DOM(DOMEXCEPTION_NOT_SUPPORTED_ERR, "putImageData() : Invalid arguments");
 
     QV4::Scoped<QQuickJSContext2DImageData> imageData(scope, arg0);
@@ -3277,7 +3279,7 @@ QV4::ReturnedValue QQuickJSContext2DPrototype::method_putImageData(QV4::CallCont
             dirtyWidth = ctx->args()[5].toNumber();
             dirtyHeight = ctx->args()[6].toNumber();
 
-            if (!qIsFinite(dirtyX) || !qIsFinite(dirtyY) || !qIsFinite(dirtyWidth) || !qIsFinite(dirtyHeight))
+            if (!qt_is_finite(dirtyX) || !qt_is_finite(dirtyY) || !qt_is_finite(dirtyWidth) || !qt_is_finite(dirtyHeight))
                 V4THROW_DOM(DOMEXCEPTION_NOT_SUPPORTED_ERR, "putImageData() : Invalid arguments");
 
 
@@ -3364,7 +3366,7 @@ QV4::ReturnedValue QQuickContext2DStyle::gradient_proto_addColorStop(QV4::CallCo
         } else {
             color = qt_color_from_string(ctx->args()[1]);
         }
-        if (pos < 0.0 || pos > 1.0 || !qIsFinite(pos)) {
+        if (pos < 0.0 || pos > 1.0 || !qt_is_finite(pos)) {
             V4THROW_DOM(DOMEXCEPTION_INDEX_SIZE_ERR, "CanvasGradient: parameter offset out of range");
         }
 
@@ -3384,7 +3386,7 @@ void QQuickContext2D::scale(qreal x,  qreal y)
     if (!state.invertibleCTM)
         return;
 
-    if (!qIsFinite(x) || !qIsFinite(y))
+    if (!qt_is_finite(x) || !qt_is_finite(y))
         return;
 
     QTransform newTransform = state.matrix;
@@ -3405,7 +3407,7 @@ void QQuickContext2D::rotate(qreal angle)
     if (!state.invertibleCTM)
         return;
 
-    if (!qIsFinite(angle))
+    if (!qt_is_finite(angle))
         return;
 
     QTransform newTransform =state.matrix;
@@ -3426,7 +3428,7 @@ void QQuickContext2D::shear(qreal h, qreal v)
     if (!state.invertibleCTM)
         return;
 
-    if (!qIsFinite(h) || !qIsFinite(v))
+    if (!qt_is_finite(h) || !qt_is_finite(v))
         return ;
 
     QTransform newTransform = state.matrix;
@@ -3447,7 +3449,7 @@ void QQuickContext2D::translate(qreal x, qreal y)
     if (!state.invertibleCTM)
         return;
 
-    if (!qIsFinite(x) || !qIsFinite(y))
+    if (!qt_is_finite(x) || !qt_is_finite(y))
         return ;
 
     QTransform newTransform = state.matrix;
@@ -3468,7 +3470,7 @@ void QQuickContext2D::transform(qreal a, qreal b, qreal c, qreal d, qreal e, qre
     if (!state.invertibleCTM)
         return;
 
-    if (!qIsFinite(a) || !qIsFinite(b) || !qIsFinite(c) || !qIsFinite(d) || !qIsFinite(e) || !qIsFinite(f))
+    if (!qt_is_finite(a) || !qt_is_finite(b) || !qt_is_finite(c) || !qt_is_finite(d) || !qt_is_finite(e) || !qt_is_finite(f))
         return;
 
     QTransform transform(a, b, c, d, e, f);
@@ -3485,7 +3487,7 @@ void QQuickContext2D::transform(qreal a, qreal b, qreal c, qreal d, qreal e, qre
 
 void QQuickContext2D::setTransform(qreal a, qreal b, qreal c, qreal d, qreal e, qreal f)
 {
-    if (!qIsFinite(a) || !qIsFinite(b) || !qIsFinite(c) || !qIsFinite(d) || !qIsFinite(e) || !qIsFinite(f))
+    if (!qt_is_finite(a) || !qt_is_finite(b) || !qt_is_finite(c) || !qt_is_finite(d) || !qt_is_finite(e) || !qt_is_finite(f))
         return;
 
     QTransform ctm = state.matrix;
@@ -3542,7 +3544,7 @@ void QQuickContext2D::fillRect(qreal x, qreal y, qreal w, qreal h)
     if (!state.invertibleCTM)
         return;
 
-    if (!qIsFinite(x) || !qIsFinite(y) || !qIsFinite(w) || !qIsFinite(h))
+    if (!qt_is_finite(x) || !qt_is_finite(y) || !qt_is_finite(w) || !qt_is_finite(h))
         return;
 
     buffer()->fillRect(QRectF(x, y, w, h));
@@ -3553,7 +3555,7 @@ void QQuickContext2D::strokeRect(qreal x, qreal y, qreal w, qreal h)
     if (!state.invertibleCTM)
         return;
 
-    if (!qIsFinite(x) || !qIsFinite(y) || !qIsFinite(w) || !qIsFinite(h))
+    if (!qt_is_finite(x) || !qt_is_finite(y) || !qt_is_finite(w) || !qt_is_finite(h))
         return;
 
     buffer()->strokeRect(QRectF(x, y, w, h));
@@ -3564,7 +3566,7 @@ void QQuickContext2D::clearRect(qreal x, qreal y, qreal w, qreal h)
     if (!state.invertibleCTM)
         return;
 
-    if (!qIsFinite(x) || !qIsFinite(y) || !qIsFinite(w) || !qIsFinite(h))
+    if (!qt_is_finite(x) || !qt_is_finite(y) || !qt_is_finite(w) || !qt_is_finite(h))
         return;
 
     buffer()->clearRect(QRectF(x, y, w, h));
@@ -3575,7 +3577,7 @@ void QQuickContext2D::drawText(const QString& text, qreal x, qreal y, bool fill)
     if (!state.invertibleCTM)
         return;
 
-    if (!qIsFinite(x) || !qIsFinite(y))
+    if (!qt_is_finite(x) || !qt_is_finite(y))
         return;
 
     QPainterPath textPath = createTextGlyphs(x, y, text);
@@ -3721,7 +3723,7 @@ void QQuickContext2D::arcTo(qreal x1, qreal y1,
     if (!state.invertibleCTM)
         return;
 
-    if (!qIsFinite(x1) || !qIsFinite(y1) || !qIsFinite(x2) || !qIsFinite(y2) || !qIsFinite(radius))
+    if (!qt_is_finite(x1) || !qt_is_finite(y1) || !qt_is_finite(x2) || !qt_is_finite(y2) || !qt_is_finite(radius))
         return;
 
     QPointF st(x1, y1);
@@ -3739,7 +3741,7 @@ void QQuickContext2D::rect(qreal x, qreal y, qreal w, qreal h)
 {
     if (!state.invertibleCTM)
         return;
-    if (!qIsFinite(x) || !qIsFinite(y) || !qIsFinite(w) || !qIsFinite(h))
+    if (!qt_is_finite(x) || !qt_is_finite(y) || !qt_is_finite(w) || !qt_is_finite(h))
         return;
 
     if (!w && !h) {
@@ -3756,7 +3758,7 @@ void QQuickContext2D::roundedRect(qreal x, qreal y,
     if (!state.invertibleCTM)
         return;
 
-    if (!qIsFinite(x) || !qIsFinite(y) || !qIsFinite(w) || !qIsFinite(h) || !qIsFinite(xr) || !qIsFinite(yr))
+    if (!qt_is_finite(x) || !qt_is_finite(y) || !qt_is_finite(w) || !qt_is_finite(h) || !qt_is_finite(xr) || !qt_is_finite(yr))
         return;
 
     if (!w && !h) {
@@ -3772,7 +3774,7 @@ void QQuickContext2D::ellipse(qreal x, qreal y,
     if (!state.invertibleCTM)
         return;
 
-    if (!qIsFinite(x) || !qIsFinite(y) || !qIsFinite(w) || !qIsFinite(h))
+    if (!qt_is_finite(x) || !qt_is_finite(y) || !qt_is_finite(w) || !qt_is_finite(h))
         return;
 
     if (!w && !h) {
@@ -3798,7 +3800,7 @@ void QQuickContext2D::arc(qreal xc, qreal yc, qreal radius, qreal sar, qreal ear
     if (!state.invertibleCTM)
         return;
 
-    if (!qIsFinite(xc) || !qIsFinite(yc) || !qIsFinite(sar) || !qIsFinite(ear) || !qIsFinite(radius))
+    if (!qt_is_finite(xc) || !qt_is_finite(yc) || !qt_is_finite(sar) || !qt_is_finite(ear) || !qt_is_finite(radius))
         return;
 
     if (sar == ear)
@@ -3937,13 +3939,13 @@ bool QQuickContext2D::isPointInPath(qreal x, qreal y) const
     if (!m_path.elementCount())
         return false;
 
-    if (!qIsFinite(x) || !qIsFinite(y))
+    if (!qt_is_finite(x) || !qt_is_finite(y))
         return false;
 
     QPointF point(x, y);
     QTransform ctm = state.matrix;
     QPointF p = ctm.inverted().map(point);
-    if (!qIsFinite(p.x()) || !qIsFinite(p.y()))
+    if (!qt_is_finite(p.x()) || !qt_is_finite(p.y()))
         return false;
 
     const_cast<QQuickContext2D *>(this)->m_path.setFillRule(state.fillRule);
diff --git a/src/quick/items/qquickanchors.cpp b/src/quick/items/qquickanchors.cpp
index d87669df56..4cbd41106e 100644
--- a/src/quick/items/qquickanchors.cpp
+++ b/src/quick/items/qquickanchors.cpp
@@ -39,19 +39,48 @@
 
 #include "qquickanchors_p_p.h"
 
-#include "qquickitem.h"
 #include "qquickitem_p.h"
 
 #include <qqmlinfo.h>
 
 QT_BEGIN_NAMESPACE
 
+static Q_ALWAYS_INLINE QQuickItem *readParentItem(const QQuickItem *item)
+{
+    return QQuickItemPrivate::get(item)->parentItem;
+}
+
+static Q_ALWAYS_INLINE qreal readX(const QQuickItem *item)
+{
+    return QQuickItemPrivate::get(item)->x;
+}
+
+static Q_ALWAYS_INLINE qreal readY(const QQuickItem *item)
+{
+    return QQuickItemPrivate::get(item)->y;
+}
+
+static Q_ALWAYS_INLINE qreal readWidth(const QQuickItem *item)
+{
+    return QQuickItemPrivate::get(item)->width;
+}
+
+static Q_ALWAYS_INLINE qreal readHeight(const QQuickItem *item)
+{
+    return QQuickItemPrivate::get(item)->height;
+}
+
+static Q_ALWAYS_INLINE qreal readBaselineOffset(const QQuickItem *item)
+{
+    return QQuickItemPrivate::get(item)->baselineOffset;
+}
+
 //TODO: should we cache relationships, so we don't have to check each time (parent-child or sibling)?
 //TODO: support non-parent, non-sibling (need to find lowest common ancestor)
 
-static inline qreal hcenter(QQuickItem const *item)
+static inline qreal hcenter(const QQuickItem *item)
 {
-    qreal width = item->width();
+    qreal width = readWidth(item);
     if (QQuickAnchors *anchors = QQuickItemPrivate::get(item)->_anchors) {
         if (!QQuickAnchorsPrivate::get(anchors)->centerAligned)
             return width / 2;
@@ -63,9 +92,9 @@ static inline qreal hcenter(QQuickItem const *item)
         return width / 2;
 }
 
-static inline qreal vcenter(QQuickItem const *item)
+static inline qreal vcenter(const QQuickItem *item)
 {
-    qreal height = item->height();
+    qreal height = readHeight(item);
     if (QQuickAnchors *anchors = QQuickItemPrivate::get(item)->_anchors) {
         if (!QQuickAnchorsPrivate::get(anchors)->centerAligned)
             return height / 2;
@@ -78,30 +107,30 @@ static inline qreal vcenter(QQuickItem const *item)
 }
 
 //local position
-static qreal position(QQuickItem const *item, QQuickAnchorLine::AnchorLine anchorLine)
+static inline qreal position(const QQuickItem *item, QQuickAnchors::Anchor anchorLine)
 {
     qreal ret = 0.0;
     switch (anchorLine) {
-    case QQuickAnchorLine::Left:
-        ret = item->x();
+    case QQuickAnchors::LeftAnchor:
+        ret = readX(item);
         break;
-    case QQuickAnchorLine::Right:
-        ret = item->x() + item->width();
+    case QQuickAnchors::RightAnchor:
+        ret = readX(item) + readWidth(item);
         break;
-    case QQuickAnchorLine::Top:
-        ret = item->y();
+    case QQuickAnchors::TopAnchor:
+        ret = readY(item);
         break;
-    case QQuickAnchorLine::Bottom:
-        ret = item->y() + item->height();
+    case QQuickAnchors::BottomAnchor:
+        ret = readY(item) + readHeight(item);
         break;
-    case QQuickAnchorLine::HCenter:
-        ret = item->x() + hcenter(item);
+    case QQuickAnchors::HCenterAnchor:
+        ret = readX(item) + hcenter(item);
         break;
-    case QQuickAnchorLine::VCenter:
-        ret = item->y() + vcenter(item);
+    case QQuickAnchors::VCenterAnchor:
+        ret = readY(item) + vcenter(item);
         break;
-    case QQuickAnchorLine::Baseline:
-        ret = item->y() + item->baselineOffset();
+    case QQuickAnchors::BaselineAnchor:
+        ret = readY(item) + readBaselineOffset(item);
         break;
     default:
         break;
@@ -111,30 +140,30 @@ static qreal position(QQuickItem const *item, QQuickAnchorLine::AnchorLine ancho
 }
 
 //position when origin is 0,0
-static qreal adjustedPosition(QQuickItem *item, QQuickAnchorLine::AnchorLine anchorLine)
+static inline qreal adjustedPosition(QQuickItem *item, QQuickAnchors::Anchor anchorLine)
 {
     qreal ret = 0.0;
     switch (anchorLine) {
-    case QQuickAnchorLine::Left:
+    case QQuickAnchors::LeftAnchor:
         ret = 0.0;
         break;
-    case QQuickAnchorLine::Right:
-        ret = item->width();
+    case QQuickAnchors::RightAnchor:
+        ret = readWidth(item);
         break;
-    case QQuickAnchorLine::Top:
+    case QQuickAnchors::TopAnchor:
         ret = 0.0;
         break;
-    case QQuickAnchorLine::Bottom:
-        ret = item->height();
+    case QQuickAnchors::BottomAnchor:
+        ret = readHeight(item);
         break;
-    case QQuickAnchorLine::HCenter:
+    case QQuickAnchors::HCenterAnchor:
         ret = hcenter(item);
         break;
-    case QQuickAnchorLine::VCenter:
+    case QQuickAnchors::VCenterAnchor:
         ret = vcenter(item);
         break;
-    case QQuickAnchorLine::Baseline:
-        ret = item->baselineOffset();
+    case QQuickAnchors::BaselineAnchor:
+        ret = readBaselineOffset(item);
         break;
     default:
         break;
@@ -154,13 +183,13 @@ QQuickAnchors::~QQuickAnchors()
     d->inDestructor = true;
     d->remDepend(d->fill);
     d->remDepend(d->centerIn);
-    d->remDepend(d->left.item);
-    d->remDepend(d->right.item);
-    d->remDepend(d->top.item);
-    d->remDepend(d->bottom.item);
-    d->remDepend(d->vCenter.item);
-    d->remDepend(d->hCenter.item);
-    d->remDepend(d->baseline.item);
+    d->remDepend(d->leftAnchorItem);
+    d->remDepend(d->rightAnchorItem);
+    d->remDepend(d->topAnchorItem);
+    d->remDepend(d->bottomAnchorItem);
+    d->remDepend(d->vCenterAnchorItem);
+    d->remDepend(d->hCenterAnchorItem);
+    d->remDepend(d->baselineAnchorItem);
 }
 
 void QQuickAnchorsPrivate::fillChanged()
@@ -174,12 +203,13 @@ void QQuickAnchorsPrivate::fillChanged()
 
         qreal horizontalMargin = q->mirrored() ? rightMargin : leftMargin;
 
-        if (fill == item->parentItem()) {                         //child-parent
+        if (fill == readParentItem(item)) {                         //child-parent
             setItemPos(QPointF(horizontalMargin, topMargin));
-        } else if (fill->parentItem() == item->parentItem()) {   //siblings
-            setItemPos(QPointF(fill->x()+horizontalMargin, fill->y()+topMargin));
+        } else if (readParentItem(fill) == readParentItem(item)) {   //siblings
+            setItemPos(QPointF(readX(fill)+horizontalMargin, readY(fill) + topMargin));
         }
-        setItemSize(QSizeF(fill->width()-leftMargin-rightMargin, fill->height()-topMargin-bottomMargin));
+        setItemSize(QSizeF(readWidth(fill) - leftMargin - rightMargin,
+                           readHeight(fill) - topMargin - bottomMargin));
 
         --updatingFill;
     } else {
@@ -199,12 +229,12 @@ void QQuickAnchorsPrivate::centerInChanged()
         ++updatingCenterIn;
 
         qreal effectiveHCenterOffset = q->mirrored() ? -hCenterOffset : hCenterOffset;
-        if (centerIn == item->parentItem()) {
-            QPointF p(hcenter(item->parentItem()) - hcenter(item) + effectiveHCenterOffset,
-                      vcenter(item->parentItem()) - vcenter(item) + vCenterOffset);
+        if (centerIn == readParentItem(item)) {
+            QPointF p(hcenter(readParentItem(item)) - hcenter(item) + effectiveHCenterOffset,
+                      vcenter(readParentItem(item)) - vcenter(item) + vCenterOffset);
             setItemPos(p);
 
-        } else if (centerIn->parentItem() == item->parentItem()) {
+        } else if (readParentItem(centerIn) == readParentItem(item)) {
             QPointF p(centerIn->x() + hcenter(centerIn) - hcenter(item) + effectiveHCenterOffset,
                       centerIn->y() + vcenter(centerIn) - vcenter(item) + vCenterOffset);
             setItemPos(p);
@@ -225,32 +255,32 @@ void QQuickAnchorsPrivate::clearItem(QQuickItem *item)
         fill = 0;
     if (centerIn == item)
         centerIn = 0;
-    if (left.item == item) {
-        left.item = 0;
+    if (leftAnchorItem == item) {
+        leftAnchorItem = 0;
         usedAnchors &= ~QQuickAnchors::LeftAnchor;
     }
-    if (right.item == item) {
-        right.item = 0;
+    if (rightAnchorItem == item) {
+        rightAnchorItem = 0;
         usedAnchors &= ~QQuickAnchors::RightAnchor;
     }
-    if (top.item == item) {
-        top.item = 0;
+    if (topAnchorItem == item) {
+        topAnchorItem = 0;
         usedAnchors &= ~QQuickAnchors::TopAnchor;
     }
-    if (bottom.item == item) {
-        bottom.item = 0;
+    if (bottomAnchorItem == item) {
+        bottomAnchorItem = 0;
         usedAnchors &= ~QQuickAnchors::BottomAnchor;
     }
-    if (vCenter.item == item) {
-        vCenter.item = 0;
+    if (vCenterAnchorItem == item) {
+        vCenterAnchorItem = 0;
         usedAnchors &= ~QQuickAnchors::VCenterAnchor;
     }
-    if (hCenter.item == item) {
-        hCenter.item = 0;
+    if (hCenterAnchorItem == item) {
+        hCenterAnchorItem = 0;
         usedAnchors &= ~QQuickAnchors::HCenterAnchor;
     }
-    if (baseline.item == item) {
-        baseline.item = 0;
+    if (baselineAnchorItem == item) {
+        baselineAnchorItem = 0;
         usedAnchors &= ~QQuickAnchors::BaselineAnchor;
     }
 }
@@ -263,7 +293,7 @@ int QQuickAnchorsPrivate::calculateDependency(QQuickItem *controlItem)
         return dependency;
 
     if (fill == controlItem) {
-        if (controlItem == item->parentItem())
+        if (controlItem == readParentItem(item))
             dependency |= QQuickItemPrivate::SizeChange;
         else    //sibling
             dependency |= QQuickItemPrivate::GeometryChange;
@@ -271,27 +301,27 @@ int QQuickAnchorsPrivate::calculateDependency(QQuickItem *controlItem)
     }
 
     if (centerIn == controlItem) {
-        if (controlItem == item->parentItem())
+        if (controlItem == readParentItem(item))
             dependency |= QQuickItemPrivate::SizeChange;
         else    //sibling
             dependency |= QQuickItemPrivate::GeometryChange;
         return dependency;  //exit early
     }
 
-    if ((usedAnchors & QQuickAnchors::LeftAnchor && left.item == controlItem) ||
-        (usedAnchors & QQuickAnchors::RightAnchor && right.item == controlItem) ||
-        (usedAnchors & QQuickAnchors::HCenterAnchor && hCenter.item == controlItem)) {
-        if (controlItem == item->parentItem())
+    if ((usedAnchors & QQuickAnchors::LeftAnchor && leftAnchorItem == controlItem) ||
+        (usedAnchors & QQuickAnchors::RightAnchor && rightAnchorItem == controlItem) ||
+        (usedAnchors & QQuickAnchors::HCenterAnchor && hCenterAnchorItem == controlItem)) {
+        if (controlItem == readParentItem(item))
             dependency |= QQuickItemPrivate::WidthChange;
         else    //sibling
             dependency |= QFlags<QQuickItemPrivate::GeometryChangeType>(QQuickItemPrivate::XChange | QQuickItemPrivate::WidthChange);
     }
 
-    if ((usedAnchors & QQuickAnchors::TopAnchor && top.item == controlItem) ||
-        (usedAnchors & QQuickAnchors::BottomAnchor && bottom.item == controlItem) ||
-        (usedAnchors & QQuickAnchors::VCenterAnchor && vCenter.item == controlItem) ||
-        (usedAnchors & QQuickAnchors::BaselineAnchor && baseline.item == controlItem)) {
-        if (controlItem == item->parentItem())
+    if ((usedAnchors & QQuickAnchors::TopAnchor && topAnchorItem == controlItem) ||
+        (usedAnchors & QQuickAnchors::BottomAnchor && bottomAnchorItem == controlItem) ||
+        (usedAnchors & QQuickAnchors::VCenterAnchor && vCenterAnchorItem == controlItem) ||
+        (usedAnchors & QQuickAnchors::BaselineAnchor && baselineAnchorItem == controlItem)) {
+        if (controlItem == readParentItem(item))
             dependency |= QQuickItemPrivate::HeightChange;
         else    //sibling
             dependency |= QFlags<QQuickItemPrivate::GeometryChangeType>(QQuickItemPrivate::YChange | QQuickItemPrivate::HeightChange);
@@ -422,13 +452,13 @@ void QQuickAnchorsPrivate::updateOnComplete()
     QQuickItem *dependencies[9];
     dependencies[0] = fill;
     dependencies[1] = centerIn;
-    dependencies[2] = left.item;
-    dependencies[3] = right.item;
-    dependencies[4] = hCenter.item;
-    dependencies[5] = top.item;
-    dependencies[6] = bottom.item;
-    dependencies[7] = vCenter.item;
-    dependencies[8] = baseline.item;
+    dependencies[2] = leftAnchorItem;
+    dependencies[3] = rightAnchorItem;
+    dependencies[4] = hCenterAnchorItem;
+    dependencies[5] = topAnchorItem;
+    dependencies[6] = bottomAnchorItem;
+    dependencies[7] = vCenterAnchorItem;
+    dependencies[8] = baselineAnchorItem;
 
     std::sort(dependencies, dependencies + 9);
 
@@ -447,22 +477,38 @@ void QQuickAnchorsPrivate::updateOnComplete()
 
 void QQuickAnchorsPrivate::update()
 {
-    fillChanged();
-    centerInChanged();
-    if (usedAnchors & QQuickAnchorLine::Horizontal_Mask)
-        updateHorizontalAnchors();
-    if (usedAnchors & QQuickAnchorLine::Vertical_Mask)
-        updateVerticalAnchors();
+    if (!isItemComplete())
+        return;
+
+    if (fill) {
+        fillChanged();
+    } else if (centerIn) {
+        centerInChanged();
+    } else {
+        if (usedAnchors & QQuickAnchors::Horizontal_Mask)
+            updateHorizontalAnchors();
+        if (usedAnchors & QQuickAnchors::Vertical_Mask)
+            updateVerticalAnchors();
+    }
 }
 
 void QQuickAnchorsPrivate::itemGeometryChanged(QQuickItem *, const QRectF &newG, const QRectF &oldG)
 {
-    fillChanged();
-    centerInChanged();
-    if ((usedAnchors & QQuickAnchorLine::Horizontal_Mask) && (newG.x() != oldG.x() || newG.width() != oldG.width()))
-        updateHorizontalAnchors();
-    if ((usedAnchors & QQuickAnchorLine::Vertical_Mask) && (newG.y() != oldG.y() || newG.height() != oldG.height()))
-        updateVerticalAnchors();
+    if (!isItemComplete())
+        return;
+
+    if (fill) {
+        fillChanged();
+    } else if (centerIn) {
+        centerInChanged();
+    } else {
+        if ((usedAnchors & QQuickAnchors::Horizontal_Mask)
+                && (newG.x() != oldG.x() || newG.width() != oldG.width()))
+            updateHorizontalAnchors();
+        if ((usedAnchors & QQuickAnchors::Vertical_Mask)
+                && (newG.y() != oldG.y() || newG.height() != oldG.height()))
+            updateVerticalAnchors();
+    }
 }
 
 QQuickItem *QQuickAnchors::fill() const
@@ -484,7 +530,7 @@ void QQuickAnchors::setFill(QQuickItem *f)
         emit fillChanged();
         return;
     }
-    if (f != d->item->parentItem() && f->parentItem() != d->item->parentItem()){
+    if (f != readParentItem(d->item) && readParentItem(f) != readParentItem(d->item)){
         qmlInfo(d->item) << tr("Cannot anchor to an item that isn't a parent or sibling.");
         return;
     }
@@ -520,7 +566,7 @@ void QQuickAnchors::setCenterIn(QQuickItem* c)
         emit centerInChanged();
         return;
     }
-    if (c != d->item->parentItem() && c->parentItem() != d->item->parentItem()){
+    if (c != readParentItem(d->item) && readParentItem(c) != readParentItem(d->item)){
         qmlInfo(d->item) << tr("Cannot anchor to an item that isn't a parent or sibling.");
         return;
     }
@@ -537,29 +583,31 @@ void QQuickAnchors::resetCenterIn()
     setCenterIn(0);
 }
 
-bool QQuickAnchorsPrivate::calcStretch(const QQuickAnchorLine &edge1,
-                                    const QQuickAnchorLine &edge2,
-                                    qreal offset1,
-                                    qreal offset2,
-                                    QQuickAnchorLine::AnchorLine line,
-                                    qreal &stretch)
+bool QQuickAnchorsPrivate::calcStretch(QQuickItem *edge1Item,
+                                       QQuickAnchors::Anchor edge1Line,
+                                       QQuickItem *edge2Item,
+                                       QQuickAnchors::Anchor edge2Line,
+                                       qreal offset1,
+                                       qreal offset2,
+                                       QQuickAnchors::Anchor line,
+                                       qreal &stretch)
 {
-    bool edge1IsParent = (edge1.item == item->parentItem());
-    bool edge2IsParent = (edge2.item == item->parentItem());
-    bool edge1IsSibling = (edge1.item->parentItem() == item->parentItem());
-    bool edge2IsSibling = (edge2.item->parentItem() == item->parentItem());
+    bool edge1IsParent = (edge1Item == readParentItem(item));
+    bool edge2IsParent = (edge2Item == readParentItem(item));
+    bool edge1IsSibling = (readParentItem(edge1Item) == readParentItem(item));
+    bool edge2IsSibling = (readParentItem(edge2Item) == readParentItem(item));
 
     bool invalid = false;
     if ((edge2IsParent && edge1IsParent) || (edge2IsSibling && edge1IsSibling)) {
-        stretch = (position(edge2.item, edge2.anchorLine) + offset2)
-                    - (position(edge1.item, edge1.anchorLine) + offset1);
+        stretch = (position(edge2Item, edge2Line) + offset2)
+                    - (position(edge1Item, edge1Line) + offset1);
     } else if (edge2IsParent && edge1IsSibling) {
-        stretch = (position(edge2.item, edge2.anchorLine) + offset2)
-                    - (position(item->parentItem(), line)
-                    + position(edge1.item, edge1.anchorLine) + offset1);
+        stretch = (position(edge2Item, edge2Line) + offset2)
+                    - (position(readParentItem(item), line)
+                    + position(edge1Item, edge1Line) + offset1);
     } else if (edge2IsSibling && edge1IsParent) {
-        stretch = (position(item->parentItem(), line) + position(edge2.item, edge2.anchorLine) + offset2)
-                    - (position(edge1.item, edge1.anchorLine) + offset1);
+        stretch = (position(readParentItem(item), line) + position(edge2Item, edge2Line) + offset2)
+                    - (position(edge1Item, edge1Line) + offset1);
     } else
         invalid = true;
 
@@ -578,52 +626,60 @@ void QQuickAnchorsPrivate::updateVerticalAnchors()
             bool invalid = true;
             qreal height = 0.0;
             if (usedAnchors & QQuickAnchors::BottomAnchor) {
-                invalid = calcStretch(top, bottom, topMargin, -bottomMargin, QQuickAnchorLine::Top, height);
+                invalid = calcStretch(topAnchorItem, topAnchorLine,
+                                      bottomAnchorItem, bottomAnchorLine,
+                                      topMargin, -bottomMargin, QQuickAnchors::TopAnchor, height);
             } else if (usedAnchors & QQuickAnchors::VCenterAnchor) {
-                invalid = calcStretch(top, vCenter, topMargin, vCenterOffset, QQuickAnchorLine::Top, height);
+                invalid = calcStretch(topAnchorItem, topAnchorLine,
+                                      vCenterAnchorItem, vCenterAnchorLine,
+                                      topMargin, vCenterOffset, QQuickAnchors::TopAnchor, height);
                 height *= 2;
             }
             if (!invalid)
                 setItemHeight(height);
 
             //Handle top
-            if (top.item == item->parentItem()) {
-                setItemY(adjustedPosition(top.item, top.anchorLine) + topMargin);
-            } else if (top.item->parentItem() == item->parentItem()) {
-                setItemY(position(top.item, top.anchorLine) + topMargin);
+            if (topAnchorItem == readParentItem(item)) {
+                setItemY(adjustedPosition(topAnchorItem, topAnchorLine) + topMargin);
+            } else if (readParentItem(topAnchorItem) == readParentItem(item)) {
+                setItemY(position(topAnchorItem, topAnchorLine) + topMargin);
             }
         } else if (usedAnchors & QQuickAnchors::BottomAnchor) {
             //Handle stretching (top + bottom case is handled above)
             if (usedAnchors & QQuickAnchors::VCenterAnchor) {
                 qreal height = 0.0;
-                bool invalid = calcStretch(vCenter, bottom, vCenterOffset, -bottomMargin,
-                                              QQuickAnchorLine::Top, height);
+                bool invalid = calcStretch(vCenterAnchorItem, vCenterAnchorLine,
+                                           bottomAnchorItem, bottomAnchorLine,
+                                           vCenterOffset, -bottomMargin, QQuickAnchors::TopAnchor,
+                                           height);
                 if (!invalid)
                     setItemHeight(height*2);
             }
 
             //Handle bottom
-            if (bottom.item == item->parentItem()) {
-                setItemY(adjustedPosition(bottom.item, bottom.anchorLine) - item->height() - bottomMargin);
-            } else if (bottom.item->parentItem() == item->parentItem()) {
-                setItemY(position(bottom.item, bottom.anchorLine) - item->height() - bottomMargin);
+            if (bottomAnchorItem == readParentItem(item)) {
+                setItemY(adjustedPosition(bottomAnchorItem, bottomAnchorLine) - readHeight(item) - bottomMargin);
+            } else if (readParentItem(bottomAnchorItem) == readParentItem(item)) {
+                setItemY(position(bottomAnchorItem, bottomAnchorLine) - readHeight(item) - bottomMargin);
             }
         } else if (usedAnchors & QQuickAnchors::VCenterAnchor) {
             //(stetching handled above)
 
             //Handle vCenter
-            if (vCenter.item == item->parentItem()) {
-                setItemY(adjustedPosition(vCenter.item, vCenter.anchorLine)
+            if (vCenterAnchorItem == readParentItem(item)) {
+                setItemY(adjustedPosition(vCenterAnchorItem, vCenterAnchorLine)
                               - vcenter(item) + vCenterOffset);
-            } else if (vCenter.item->parentItem() == item->parentItem()) {
-                setItemY(position(vCenter.item, vCenter.anchorLine) - vcenter(item) + vCenterOffset);
+            } else if (readParentItem(vCenterAnchorItem) == readParentItem(item)) {
+                setItemY(position(vCenterAnchorItem, vCenterAnchorLine) - vcenter(item) + vCenterOffset);
             }
         } else if (usedAnchors & QQuickAnchors::BaselineAnchor) {
             //Handle baseline
-            if (baseline.item == item->parentItem()) {
-                setItemY(adjustedPosition(baseline.item, baseline.anchorLine) - item->baselineOffset() + baselineOffset);
-            } else if (baseline.item->parentItem() == item->parentItem()) {
-                setItemY(position(baseline.item, baseline.anchorLine) - item->baselineOffset() + baselineOffset);
+            if (baselineAnchorItem == readParentItem(item)) {
+                setItemY(adjustedPosition(baselineAnchorItem, baselineAnchorLine)
+                         - readBaselineOffset(item) + baselineOffset);
+            } else if (readParentItem(baselineAnchorItem) == readParentItem(item)) {
+                setItemY(position(baselineAnchorItem, baselineAnchorLine)
+                         - readBaselineOffset(item) + baselineOffset);
             }
         }
         --updatingVerticalAnchor;
@@ -633,12 +689,12 @@ void QQuickAnchorsPrivate::updateVerticalAnchors()
     }
 }
 
-inline QQuickAnchorLine::AnchorLine reverseAnchorLine(QQuickAnchorLine::AnchorLine anchorLine)
+static inline QQuickAnchors::Anchor reverseAnchorLine(QQuickAnchors::Anchor anchorLine)
 {
-    if (anchorLine == QQuickAnchorLine::Left) {
-        return QQuickAnchorLine::Right;
-    } else if (anchorLine == QQuickAnchorLine::Right) {
-        return QQuickAnchorLine::Left;
+    if (anchorLine == QQuickAnchors::LeftAnchor) {
+        return QQuickAnchors::RightAnchor;
+    } else if (anchorLine == QQuickAnchors::RightAnchor) {
+        return QQuickAnchors::LeftAnchor;
     } else {
         return anchorLine;
     }
@@ -653,26 +709,30 @@ void QQuickAnchorsPrivate::updateHorizontalAnchors()
     if (updatingHorizontalAnchor < 3) {
         ++updatingHorizontalAnchor;
         qreal effectiveRightMargin, effectiveLeftMargin, effectiveHorizontalCenterOffset;
-        QQuickAnchorLine effectiveLeft, effectiveRight, effectiveHorizontalCenter;
+        QQuickItem *effectiveLeftItem, *effectiveRightItem, *effectiveHorizontalCenterItem;
+        QQuickAnchors::Anchor effectiveLeftLine, effectiveRightLine, effectiveHorizontalCenterLine;
         QQuickAnchors::Anchor effectiveLeftAnchor, effectiveRightAnchor;
         if (q->mirrored()) {
             effectiveLeftAnchor = QQuickAnchors::RightAnchor;
             effectiveRightAnchor = QQuickAnchors::LeftAnchor;
-            effectiveLeft.item = right.item;
-            effectiveLeft.anchorLine = reverseAnchorLine(right.anchorLine);
-            effectiveRight.item = left.item;
-            effectiveRight.anchorLine = reverseAnchorLine(left.anchorLine);
-            effectiveHorizontalCenter.item = hCenter.item;
-            effectiveHorizontalCenter.anchorLine = reverseAnchorLine(hCenter.anchorLine);
+            effectiveLeftItem = rightAnchorItem;
+            effectiveLeftLine = reverseAnchorLine(rightAnchorLine);
+            effectiveRightItem = leftAnchorItem;
+            effectiveRightLine = reverseAnchorLine(leftAnchorLine);
+            effectiveHorizontalCenterItem = hCenterAnchorItem;
+            effectiveHorizontalCenterLine = reverseAnchorLine(hCenterAnchorLine);
             effectiveLeftMargin = rightMargin;
             effectiveRightMargin = leftMargin;
             effectiveHorizontalCenterOffset = -hCenterOffset;
         } else {
             effectiveLeftAnchor = QQuickAnchors::LeftAnchor;
             effectiveRightAnchor = QQuickAnchors::RightAnchor;
-            effectiveLeft = left;
-            effectiveRight = right;
-            effectiveHorizontalCenter = hCenter;
+            effectiveLeftItem = leftAnchorItem;
+            effectiveLeftLine = leftAnchorLine;
+            effectiveRightItem = rightAnchorItem;
+            effectiveRightLine = rightAnchorLine;
+            effectiveHorizontalCenterItem = hCenterAnchorItem;
+            effectiveHorizontalCenterLine = hCenterAnchorLine;
             effectiveLeftMargin = leftMargin;
             effectiveRightMargin = rightMargin;
             effectiveHorizontalCenterOffset = hCenterOffset;
@@ -683,42 +743,53 @@ void QQuickAnchorsPrivate::updateHorizontalAnchors()
             bool invalid = true;
             qreal width = 0.0;
             if (usedAnchors & effectiveRightAnchor) {
-                invalid = calcStretch(effectiveLeft, effectiveRight, effectiveLeftMargin, -effectiveRightMargin, QQuickAnchorLine::Left, width);
+                invalid = calcStretch(effectiveLeftItem, effectiveLeftLine,
+                                      effectiveRightItem, effectiveRightLine,
+                                      effectiveLeftMargin, -effectiveRightMargin,
+                                      QQuickAnchors::LeftAnchor, width);
             } else if (usedAnchors & QQuickAnchors::HCenterAnchor) {
-                invalid = calcStretch(effectiveLeft, effectiveHorizontalCenter, effectiveLeftMargin, effectiveHorizontalCenterOffset, QQuickAnchorLine::Left, width);
+                invalid = calcStretch(effectiveLeftItem, effectiveLeftLine,
+                                      effectiveHorizontalCenterItem, effectiveHorizontalCenterLine,
+                                      effectiveLeftMargin, effectiveHorizontalCenterOffset,
+                                      QQuickAnchors::LeftAnchor, width);
                 width *= 2;
             }
             if (!invalid)
                 setItemWidth(width);
 
             //Handle left
-            if (effectiveLeft.item == item->parentItem()) {
-                setItemX(adjustedPosition(effectiveLeft.item, effectiveLeft.anchorLine) + effectiveLeftMargin);
-            } else if (effectiveLeft.item->parentItem() == item->parentItem()) {
-                setItemX(position(effectiveLeft.item, effectiveLeft.anchorLine) + effectiveLeftMargin);
+            if (effectiveLeftItem == readParentItem(item)) {
+                setItemX(adjustedPosition(effectiveLeftItem, effectiveLeftLine) + effectiveLeftMargin);
+            } else if (readParentItem(effectiveLeftItem) == readParentItem(item)) {
+                setItemX(position(effectiveLeftItem, effectiveLeftLine) + effectiveLeftMargin);
             }
         } else if (usedAnchors & effectiveRightAnchor) {
             //Handle stretching (left + right case is handled in updateLeftAnchor)
             if (usedAnchors & QQuickAnchors::HCenterAnchor) {
                 qreal width = 0.0;
-                bool invalid = calcStretch(effectiveHorizontalCenter, effectiveRight, effectiveHorizontalCenterOffset, -effectiveRightMargin,
-                                              QQuickAnchorLine::Left, width);
+                bool invalid = calcStretch(effectiveHorizontalCenterItem,
+                                           effectiveHorizontalCenterLine,
+                                           effectiveRightItem,  effectiveRightLine,
+                                           effectiveHorizontalCenterOffset, -effectiveRightMargin,
+                                           QQuickAnchors::LeftAnchor, width);
                 if (!invalid)
                     setItemWidth(width*2);
             }
 
             //Handle right
-            if (effectiveRight.item == item->parentItem()) {
-                setItemX(adjustedPosition(effectiveRight.item, effectiveRight.anchorLine) - item->width() - effectiveRightMargin);
-            } else if (effectiveRight.item->parentItem() == item->parentItem()) {
-                setItemX(position(effectiveRight.item, effectiveRight.anchorLine) - item->width() - effectiveRightMargin);
+            if (effectiveRightItem == readParentItem(item)) {
+                setItemX(adjustedPosition(effectiveRightItem, effectiveRightLine)
+                         - readWidth(item) - effectiveRightMargin);
+            } else if (readParentItem(effectiveRightItem) == readParentItem(item)) {
+                setItemX(position(effectiveRightItem, effectiveRightLine)
+                         - readWidth(item) - effectiveRightMargin);
             }
         } else if (usedAnchors & QQuickAnchors::HCenterAnchor) {
             //Handle hCenter
-            if (effectiveHorizontalCenter.item == item->parentItem()) {
-                setItemX(adjustedPosition(effectiveHorizontalCenter.item, effectiveHorizontalCenter.anchorLine) - hcenter(item) + effectiveHorizontalCenterOffset);
-            } else if (effectiveHorizontalCenter.item->parentItem() == item->parentItem()) {
-                setItemX(position(effectiveHorizontalCenter.item, effectiveHorizontalCenter.anchorLine) - hcenter(item) + effectiveHorizontalCenterOffset);
+            if (effectiveHorizontalCenterItem == readParentItem(item)) {
+                setItemX(adjustedPosition(effectiveHorizontalCenterItem, effectiveHorizontalCenterLine) - hcenter(item) + effectiveHorizontalCenterOffset);
+            } else if (readParentItem(effectiveHorizontalCenterItem) == readParentItem(item)) {
+                setItemX(position(effectiveHorizontalCenterItem, effectiveHorizontalCenterLine) - hcenter(item) + effectiveHorizontalCenterOffset);
             }
         }
         --updatingHorizontalAnchor;
@@ -731,13 +802,14 @@ void QQuickAnchorsPrivate::updateHorizontalAnchors()
 QQuickAnchorLine QQuickAnchors::top() const
 {
     Q_D(const QQuickAnchors);
-    return d->top;
+    return QQuickAnchorLine(d->topAnchorItem, d->topAnchorLine);
 }
 
 void QQuickAnchors::setTop(const QQuickAnchorLine &edge)
 {
     Q_D(QQuickAnchors);
-    if (!d->checkVAnchorValid(edge) || d->top == edge)
+    if (!d->checkVAnchorValid(edge) ||
+            (d->topAnchorItem == edge.item && d->topAnchorLine == edge.anchorLine))
         return;
 
     d->usedAnchors |= TopAnchor;
@@ -747,10 +819,11 @@ void QQuickAnchors::setTop(const QQuickAnchorLine &edge)
         return;
     }
 
-    QQuickItem *oldTop = d->top.item;
-    d->top = edge;
+    QQuickItem *oldTop = d->topAnchorItem;
+    d->topAnchorItem = edge.item;
+    d->topAnchorLine = edge.anchorLine;
     d->remDepend(oldTop);
-    d->addDepend(d->top.item);
+    d->addDepend(d->topAnchorItem);
     emit topChanged();
     d->updateVerticalAnchors();
 }
@@ -759,8 +832,9 @@ void QQuickAnchors::resetTop()
 {
     Q_D(QQuickAnchors);
     d->usedAnchors &= ~TopAnchor;
-    d->remDepend(d->top.item);
-    d->top = QQuickAnchorLine();
+    d->remDepend(d->topAnchorItem);
+    d->topAnchorItem = Q_NULLPTR;
+    d->topAnchorLine = QQuickAnchors::InvalidAnchor;
     emit topChanged();
     d->updateVerticalAnchors();
 }
@@ -768,13 +842,14 @@ void QQuickAnchors::resetTop()
 QQuickAnchorLine QQuickAnchors::bottom() const
 {
     Q_D(const QQuickAnchors);
-    return d->bottom;
+    return QQuickAnchorLine(d->bottomAnchorItem, d->bottomAnchorLine);
 }
 
 void QQuickAnchors::setBottom(const QQuickAnchorLine &edge)
 {
     Q_D(QQuickAnchors);
-    if (!d->checkVAnchorValid(edge) || d->bottom == edge)
+    if (!d->checkVAnchorValid(edge) ||
+            (d->bottomAnchorItem == edge.item && d->bottomAnchorLine == edge.anchorLine))
         return;
 
     d->usedAnchors |= BottomAnchor;
@@ -784,10 +859,11 @@ void QQuickAnchors::setBottom(const QQuickAnchorLine &edge)
         return;
     }
 
-    QQuickItem *oldBottom = d->bottom.item;
-    d->bottom = edge;
+    QQuickItem *oldBottom = d->bottomAnchorItem;
+    d->bottomAnchorItem = edge.item;
+    d->bottomAnchorLine = edge.anchorLine;
     d->remDepend(oldBottom);
-    d->addDepend(d->bottom.item);
+    d->addDepend(d->bottomAnchorItem);
     emit bottomChanged();
     d->updateVerticalAnchors();
 }
@@ -796,8 +872,9 @@ void QQuickAnchors::resetBottom()
 {
     Q_D(QQuickAnchors);
     d->usedAnchors &= ~BottomAnchor;
-    d->remDepend(d->bottom.item);
-    d->bottom = QQuickAnchorLine();
+    d->remDepend(d->bottomAnchorItem);
+    d->bottomAnchorItem = Q_NULLPTR;
+    d->bottomAnchorLine = QQuickAnchors::InvalidAnchor;
     emit bottomChanged();
     d->updateVerticalAnchors();
 }
@@ -805,13 +882,14 @@ void QQuickAnchors::resetBottom()
 QQuickAnchorLine QQuickAnchors::verticalCenter() const
 {
     Q_D(const QQuickAnchors);
-    return d->vCenter;
+    return QQuickAnchorLine(d->vCenterAnchorItem, d->vCenterAnchorLine);
 }
 
 void QQuickAnchors::setVerticalCenter(const QQuickAnchorLine &edge)
 {
     Q_D(QQuickAnchors);
-    if (!d->checkVAnchorValid(edge) || d->vCenter == edge)
+    if (!d->checkVAnchorValid(edge) ||
+            (d->vCenterAnchorItem == edge.item && d->vCenterAnchorLine == edge.anchorLine))
         return;
 
     d->usedAnchors |= VCenterAnchor;
@@ -821,10 +899,11 @@ void QQuickAnchors::setVerticalCenter(const QQuickAnchorLine &edge)
         return;
     }
 
-    QQuickItem *oldVCenter = d->vCenter.item;
-    d->vCenter = edge;
+    QQuickItem *oldVCenter = d->vCenterAnchorItem;
+    d->vCenterAnchorItem = edge.item;
+    d->vCenterAnchorLine = edge.anchorLine;
     d->remDepend(oldVCenter);
-    d->addDepend(d->vCenter.item);
+    d->addDepend(d->vCenterAnchorItem);
     emit verticalCenterChanged();
     d->updateVerticalAnchors();
 }
@@ -833,8 +912,9 @@ void QQuickAnchors::resetVerticalCenter()
 {
     Q_D(QQuickAnchors);
     d->usedAnchors &= ~VCenterAnchor;
-    d->remDepend(d->vCenter.item);
-    d->vCenter = QQuickAnchorLine();
+    d->remDepend(d->vCenterAnchorItem);
+    d->vCenterAnchorItem = Q_NULLPTR;
+    d->vCenterAnchorLine = QQuickAnchors::InvalidAnchor;
     emit verticalCenterChanged();
     d->updateVerticalAnchors();
 }
@@ -842,13 +922,14 @@ void QQuickAnchors::resetVerticalCenter()
 QQuickAnchorLine QQuickAnchors::baseline() const
 {
     Q_D(const QQuickAnchors);
-    return d->baseline;
+    return QQuickAnchorLine(d->baselineAnchorItem, d->baselineAnchorLine);
 }
 
 void QQuickAnchors::setBaseline(const QQuickAnchorLine &edge)
 {
     Q_D(QQuickAnchors);
-    if (!d->checkVAnchorValid(edge) || d->baseline == edge)
+    if (!d->checkVAnchorValid(edge) ||
+            (d->baselineAnchorItem == edge.item && d->baselineAnchorLine == edge.anchorLine))
         return;
 
     d->usedAnchors |= BaselineAnchor;
@@ -858,10 +939,11 @@ void QQuickAnchors::setBaseline(const QQuickAnchorLine &edge)
         return;
     }
 
-    QQuickItem *oldBaseline = d->baseline.item;
-    d->baseline = edge;
+    QQuickItem *oldBaseline = d->baselineAnchorItem;
+    d->baselineAnchorItem = edge.item;
+    d->baselineAnchorLine = edge.anchorLine;
     d->remDepend(oldBaseline);
-    d->addDepend(d->baseline.item);
+    d->addDepend(d->baselineAnchorItem);
     emit baselineChanged();
     d->updateVerticalAnchors();
 }
@@ -870,8 +952,9 @@ void QQuickAnchors::resetBaseline()
 {
     Q_D(QQuickAnchors);
     d->usedAnchors &= ~BaselineAnchor;
-    d->remDepend(d->baseline.item);
-    d->baseline = QQuickAnchorLine();
+    d->remDepend(d->baselineAnchorItem);
+    d->baselineAnchorItem = Q_NULLPTR;
+    d->baselineAnchorLine = QQuickAnchors::InvalidAnchor;
     emit baselineChanged();
     d->updateVerticalAnchors();
 }
@@ -879,13 +962,14 @@ void QQuickAnchors::resetBaseline()
 QQuickAnchorLine QQuickAnchors::left() const
 {
     Q_D(const QQuickAnchors);
-    return d->left;
+    return QQuickAnchorLine(d->leftAnchorItem, d->leftAnchorLine);
 }
 
 void QQuickAnchors::setLeft(const QQuickAnchorLine &edge)
 {
     Q_D(QQuickAnchors);
-    if (!d->checkHAnchorValid(edge) || d->left == edge)
+    if (!d->checkHAnchorValid(edge) ||
+            (d->leftAnchorItem == edge.item && d->leftAnchorLine == edge.anchorLine))
         return;
 
     d->usedAnchors |= LeftAnchor;
@@ -895,10 +979,11 @@ void QQuickAnchors::setLeft(const QQuickAnchorLine &edge)
         return;
     }
 
-    QQuickItem *oldLeft = d->left.item;
-    d->left = edge;
+    QQuickItem *oldLeft = d->leftAnchorItem;
+    d->leftAnchorItem = edge.item;
+    d->leftAnchorLine = edge.anchorLine;
     d->remDepend(oldLeft);
-    d->addDepend(d->left.item);
+    d->addDepend(d->leftAnchorItem);
     emit leftChanged();
     d->updateHorizontalAnchors();
 }
@@ -907,8 +992,9 @@ void QQuickAnchors::resetLeft()
 {
     Q_D(QQuickAnchors);
     d->usedAnchors &= ~LeftAnchor;
-    d->remDepend(d->left.item);
-    d->left = QQuickAnchorLine();
+    d->remDepend(d->leftAnchorItem);
+    d->leftAnchorItem = Q_NULLPTR;
+    d->leftAnchorLine = QQuickAnchors::InvalidAnchor;
     emit leftChanged();
     d->updateHorizontalAnchors();
 }
@@ -916,13 +1002,14 @@ void QQuickAnchors::resetLeft()
 QQuickAnchorLine QQuickAnchors::right() const
 {
     Q_D(const QQuickAnchors);
-    return d->right;
+    return QQuickAnchorLine(d->rightAnchorItem, d->rightAnchorLine);
 }
 
 void QQuickAnchors::setRight(const QQuickAnchorLine &edge)
 {
     Q_D(QQuickAnchors);
-    if (!d->checkHAnchorValid(edge) || d->right == edge)
+    if (!d->checkHAnchorValid(edge) ||
+            (d->rightAnchorItem == edge.item && d->rightAnchorLine == edge.anchorLine))
         return;
 
     d->usedAnchors |= RightAnchor;
@@ -932,10 +1019,11 @@ void QQuickAnchors::setRight(const QQuickAnchorLine &edge)
         return;
     }
 
-    QQuickItem *oldRight = d->right.item;
-    d->right = edge;
+    QQuickItem *oldRight = d->rightAnchorItem;
+    d->rightAnchorItem = edge.item;
+    d->rightAnchorLine = edge.anchorLine;
     d->remDepend(oldRight);
-    d->addDepend(d->right.item);
+    d->addDepend(d->rightAnchorItem);
     emit rightChanged();
     d->updateHorizontalAnchors();
 }
@@ -944,8 +1032,9 @@ void QQuickAnchors::resetRight()
 {
     Q_D(QQuickAnchors);
     d->usedAnchors &= ~RightAnchor;
-    d->remDepend(d->right.item);
-    d->right = QQuickAnchorLine();
+    d->remDepend(d->rightAnchorItem);
+    d->rightAnchorItem = Q_NULLPTR;
+    d->rightAnchorLine = QQuickAnchors::InvalidAnchor;
     emit rightChanged();
     d->updateHorizontalAnchors();
 }
@@ -953,13 +1042,14 @@ void QQuickAnchors::resetRight()
 QQuickAnchorLine QQuickAnchors::horizontalCenter() const
 {
     Q_D(const QQuickAnchors);
-    return d->hCenter;
+    return QQuickAnchorLine(d->hCenterAnchorItem, d->hCenterAnchorLine);
 }
 
 void QQuickAnchors::setHorizontalCenter(const QQuickAnchorLine &edge)
 {
     Q_D(QQuickAnchors);
-    if (!d->checkHAnchorValid(edge) || d->hCenter == edge)
+    if (!d->checkHAnchorValid(edge) ||
+            (d->hCenterAnchorItem == edge.item && d->hCenterAnchorLine == edge.anchorLine))
         return;
 
     d->usedAnchors |= HCenterAnchor;
@@ -969,10 +1059,11 @@ void QQuickAnchors::setHorizontalCenter(const QQuickAnchorLine &edge)
         return;
     }
 
-    QQuickItem *oldHCenter = d->hCenter.item;
-    d->hCenter = edge;
+    QQuickItem *oldHCenter = d->hCenterAnchorItem;
+    d->hCenterAnchorItem = edge.item;
+    d->hCenterAnchorLine = edge.anchorLine;
     d->remDepend(oldHCenter);
-    d->addDepend(d->hCenter.item);
+    d->addDepend(d->hCenterAnchorItem);
     emit horizontalCenterChanged();
     d->updateHorizontalAnchors();
 }
@@ -981,8 +1072,9 @@ void QQuickAnchors::resetHorizontalCenter()
 {
     Q_D(QQuickAnchors);
     d->usedAnchors &= ~HCenterAnchor;
-    d->remDepend(d->hCenter.item);
-    d->hCenter = QQuickAnchorLine();
+    d->remDepend(d->hCenterAnchorItem);
+    d->hCenterAnchorItem = Q_NULLPTR;
+    d->hCenterAnchorLine = QQuickAnchors::InvalidAnchor;
     emit horizontalCenterChanged();
     d->updateHorizontalAnchors();
 }
@@ -1230,7 +1322,7 @@ void QQuickAnchors::setBaselineOffset(qreal offset)
 QQuickAnchors::Anchors QQuickAnchors::usedAnchors() const
 {
     Q_D(const QQuickAnchors);
-    return d->usedAnchors;
+    return static_cast<QQuickAnchors::Anchors>(d->usedAnchors);
 }
 
 bool QQuickAnchorsPrivate::checkHValid() const
@@ -1250,10 +1342,11 @@ bool QQuickAnchorsPrivate::checkHAnchorValid(QQuickAnchorLine anchor) const
     if (!anchor.item) {
         qmlInfo(item) << QQuickAnchors::tr("Cannot anchor to a null item.");
         return false;
-    } else if (anchor.anchorLine & QQuickAnchorLine::Vertical_Mask) {
+    } else if (anchor.anchorLine & QQuickAnchors::Vertical_Mask) {
         qmlInfo(item) << QQuickAnchors::tr("Cannot anchor a horizontal edge to a vertical edge.");
         return false;
-    } else if (anchor.item != item->parentItem() && anchor.item->parentItem() != item->parentItem()){
+    } else if (anchor.item != readParentItem(item)
+               && readParentItem(anchor.item) != readParentItem(item)) {
         qmlInfo(item) << QQuickAnchors::tr("Cannot anchor to an item that isn't a parent or sibling.");
         return false;
     } else if (anchor.item == item) {
@@ -1287,10 +1380,11 @@ bool QQuickAnchorsPrivate::checkVAnchorValid(QQuickAnchorLine anchor) const
     if (!anchor.item) {
         qmlInfo(item) << QQuickAnchors::tr("Cannot anchor to a null item.");
         return false;
-    } else if (anchor.anchorLine & QQuickAnchorLine::Horizontal_Mask) {
+    } else if (anchor.anchorLine & QQuickAnchors::Horizontal_Mask) {
         qmlInfo(item) << QQuickAnchors::tr("Cannot anchor a vertical edge to a horizontal edge.");
         return false;
-    } else if (anchor.item != item->parentItem() && anchor.item->parentItem() != item->parentItem()){
+    } else if (anchor.item != readParentItem(item)
+               && readParentItem(anchor.item) != readParentItem(item)) {
         qmlInfo(item) << QQuickAnchors::tr("Cannot anchor to an item that isn't a parent or sibling.");
         return false;
     } else if (anchor.item == item){
diff --git a/src/quick/items/qquickanchors_p.h b/src/quick/items/qquickanchors_p.h
index 0e02d80ae8..f00b8b5ba7 100644
--- a/src/quick/items/qquickanchors_p.h
+++ b/src/quick/items/qquickanchors_p.h
@@ -89,7 +89,14 @@ public:
     QQuickAnchors(QQuickItem *item, QObject *parent=0);
     virtual ~QQuickAnchors();
 
-    enum Anchor {
+    enum Anchor
+#if defined(Q_CC_CLANG) || !defined(Q_CC_GNU) // meaning: clang and msvc, but NOT gcc proper (because, you know, Q_CC_CLANG implies Q_CC_GNU)
+            // Not specifying the enum base type will have MSVC 'interpret' it as signed instead of an unsigned bit-field.
+            // However, specifying the enum base type breaks many GCCs, which complain that it can't store all values in a 7 bit bitfield.
+            : uint
+#endif
+    {
+        InvalidAnchor = 0x0,
         LeftAnchor = 0x01,
         RightAnchor = 0x02,
         TopAnchor = 0x04,
diff --git a/src/quick/items/qquickanchors_p_p.h b/src/quick/items/qquickanchors_p_p.h
index 205d9a40da..da659946c0 100644
--- a/src/quick/items/qquickanchors_p_p.h
+++ b/src/quick/items/qquickanchors_p_p.h
@@ -60,24 +60,15 @@ QT_BEGIN_NAMESPACE
 class QQuickAnchorLine
 {
 public:
-    enum AnchorLine {
-        Invalid = 0x0,
-        Left = 0x01,
-        Right = 0x02,
-        Top = 0x04,
-        Bottom = 0x08,
-        HCenter = 0x10,
-        VCenter = 0x20,
-        Baseline = 0x40,
-        Horizontal_Mask = Left | Right | HCenter,
-        Vertical_Mask = Top | Bottom | VCenter | Baseline
-    };
-
-    QQuickAnchorLine() : item(0), anchorLine(Invalid) {}
-    QQuickAnchorLine(QQuickItem *i, AnchorLine l) : item(i), anchorLine(l) {}
+    QQuickAnchorLine() : item(0), anchorLine(QQuickAnchors::InvalidAnchor) {}
+    QQuickAnchorLine(QQuickItem *i, QQuickAnchors::Anchor l) : item(i), anchorLine(l) {}
+    QQuickAnchorLine(QQuickItem *i, uint l)
+        : item(i)
+        , anchorLine(static_cast<QQuickAnchors::Anchor>(l))
+    { Q_ASSERT(l < ((QQuickAnchors::BaselineAnchor << 1) - 1)); }
 
     QQuickItem *item;
-    AnchorLine anchorLine;
+    QQuickAnchors::Anchor anchorLine;
 };
 
 inline bool operator==(const QQuickAnchorLine& a, const QQuickAnchorLine& b)
@@ -90,13 +81,44 @@ class QQuickAnchorsPrivate : public QObjectPrivate, public QQuickItemChangeListe
     Q_DECLARE_PUBLIC(QQuickAnchors)
 public:
     QQuickAnchorsPrivate(QQuickItem *i)
-      : componentComplete(true), updatingMe(false), inDestructor(false), centerAligned(true),
-        leftMarginExplicit(false), rightMarginExplicit(false), topMarginExplicit(false),
-        bottomMarginExplicit(false), updatingHorizontalAnchor(0),
-        updatingVerticalAnchor(0), updatingFill(0), updatingCenterIn(0), item(i), usedAnchors(0), fill(0),
-        centerIn(0), leftMargin(0), rightMargin(0), topMargin(0), bottomMargin(0),
-        margins(0), vCenterOffset(0), hCenterOffset(0), baselineOffset(0)
-
+        : leftMargin(0)
+        , rightMargin(0)
+        , topMargin(0)
+        , bottomMargin(0)
+        , margins(0)
+        , vCenterOffset(0)
+        , hCenterOffset(0)
+        , baselineOffset(0)
+        , item(i)
+        , fill(Q_NULLPTR)
+        , centerIn(Q_NULLPTR)
+        , leftAnchorItem(Q_NULLPTR)
+        , rightAnchorItem(Q_NULLPTR)
+        , topAnchorItem(Q_NULLPTR)
+        , bottomAnchorItem(Q_NULLPTR)
+        , vCenterAnchorItem(Q_NULLPTR)
+        , hCenterAnchorItem(Q_NULLPTR)
+        , baselineAnchorItem(Q_NULLPTR)
+        , leftAnchorLine(QQuickAnchors::InvalidAnchor)
+        , leftMarginExplicit(false)
+        , rightAnchorLine(QQuickAnchors::InvalidAnchor)
+        , rightMarginExplicit(false)
+        , topAnchorLine(QQuickAnchors::InvalidAnchor)
+        , topMarginExplicit(false)
+        , bottomAnchorLine(QQuickAnchors::InvalidAnchor)
+        , bottomMarginExplicit(false)
+        , vCenterAnchorLine(QQuickAnchors::InvalidAnchor)
+        , updatingMe(false)
+        , hCenterAnchorLine(QQuickAnchors::InvalidAnchor)
+        , inDestructor(false)
+        , baselineAnchorLine(QQuickAnchors::InvalidAnchor)
+        , centerAligned(true)
+        , updatingFill(0)
+        , updatingCenterIn(0)
+        , updatingHorizontalAnchor(0)
+        , updatingVerticalAnchor(0)
+        , componentComplete(true)
+        , usedAnchors(QQuickAnchors::InvalidAnchor)
     {
     }
 
@@ -107,19 +129,6 @@ public:
     void remDepend(QQuickItem *);
     bool isItemComplete() const;
 
-    bool componentComplete:1;
-    bool updatingMe:1;
-    bool inDestructor:1;
-    bool centerAligned:1;
-    bool leftMarginExplicit : 1;
-    bool rightMarginExplicit : 1;
-    bool topMarginExplicit : 1;
-    bool bottomMarginExplicit : 1;
-    uint updatingHorizontalAnchor:2;
-    uint updatingVerticalAnchor:2;
-    uint updatingFill:2;
-    uint updatingCenterIn:2;
-
     void setItemHeight(qreal);
     void setItemWidth(qreal);
     void setItemX(qreal);
@@ -139,7 +148,9 @@ public:
     bool checkVValid() const;
     bool checkHAnchorValid(QQuickAnchorLine anchor) const;
     bool checkVAnchorValid(QQuickAnchorLine anchor) const;
-    bool calcStretch(const QQuickAnchorLine &edge1, const QQuickAnchorLine &edge2, qreal offset1, qreal offset2, QQuickAnchorLine::AnchorLine line, qreal &stretch);
+    bool calcStretch(QQuickItem *edge1Item, QQuickAnchors::Anchor edge1Line,
+                     QQuickItem *edge2Item, QQuickAnchors::Anchor edge2Line,
+                     qreal offset1, qreal offset2, QQuickAnchors::Anchor line, qreal &stretch);
 
     bool isMirrored() const;
     void updateHorizontalAnchors();
@@ -147,20 +158,6 @@ public:
     void fillChanged();
     void centerInChanged();
 
-    QQuickItem *item;
-    QQuickAnchors::Anchors usedAnchors;
-
-    QQuickItem *fill;
-    QQuickItem *centerIn;
-
-    QQuickAnchorLine left;
-    QQuickAnchorLine right;
-    QQuickAnchorLine top;
-    QQuickAnchorLine bottom;
-    QQuickAnchorLine vCenter;
-    QQuickAnchorLine hCenter;
-    QQuickAnchorLine baseline;
-
     qreal leftMargin;
     qreal rightMargin;
     qreal topMargin;
@@ -170,6 +167,44 @@ public:
     qreal hCenterOffset;
     qreal baselineOffset;
 
+    QQuickItem *item;
+
+    QQuickItem *fill;
+    QQuickItem *centerIn;
+
+    QQuickItem *leftAnchorItem;
+    QQuickItem *rightAnchorItem;
+    QQuickItem *topAnchorItem;
+    QQuickItem *bottomAnchorItem;
+    QQuickItem *vCenterAnchorItem;
+    QQuickItem *hCenterAnchorItem;
+    QQuickItem *baselineAnchorItem;
+
+    // The bit fields below are carefully laid out in chunks of 1 byte, so the compiler doesn't
+    // need to generate 2 loads (and combining shifts/ors) to create a single field.
+
+    QQuickAnchors::Anchor leftAnchorLine     : 7;
+    uint leftMarginExplicit                  : 1;
+    QQuickAnchors::Anchor rightAnchorLine    : 7;
+    uint rightMarginExplicit                 : 1;
+    QQuickAnchors::Anchor topAnchorLine      : 7;
+    uint topMarginExplicit                   : 1;
+    QQuickAnchors::Anchor bottomAnchorLine   : 7;
+    uint bottomMarginExplicit                : 1;
+
+    QQuickAnchors::Anchor vCenterAnchorLine  : 7;
+    uint updatingMe                          : 1;
+    QQuickAnchors::Anchor hCenterAnchorLine  : 7;
+    uint inDestructor                        : 1;
+    QQuickAnchors::Anchor baselineAnchorLine : 7;
+    uint centerAligned                       : 1;
+    uint updatingFill                        : 2;
+    uint updatingCenterIn                    : 2;
+    uint updatingHorizontalAnchor            : 2;
+    uint updatingVerticalAnchor              : 2;
+
+    uint componentComplete                   : 1;
+    uint usedAnchors                         : 7; // QQuickAnchors::Anchors
 
     static inline QQuickAnchorsPrivate *get(QQuickAnchors *o) {
         return static_cast<QQuickAnchorsPrivate *>(QObjectPrivate::get(o));
diff --git a/src/quick/items/qquickanimatedimage.cpp b/src/quick/items/qquickanimatedimage.cpp
index 42033b6135..6f14bf15fe 100644
--- a/src/quick/items/qquickanimatedimage.cpp
+++ b/src/quick/items/qquickanimatedimage.cpp
@@ -306,8 +306,9 @@ void QQuickAnimatedImage::load()
         d->status = Null;
         emit statusChanged(d->status);
 
-        if (sourceSize() != d->oldSourceSize) {
-            d->oldSourceSize = sourceSize();
+        d->currentSourceSize = QSize(0, 0);
+        if (d->currentSourceSize != d->oldSourceSize) {
+            d->oldSourceSize = d->currentSourceSize;
             emit sourceSizeChanged();
         }
         if (isPlaying() != d->oldPlaying)
@@ -383,8 +384,9 @@ void QQuickAnimatedImage::movieRequestFinished()
         d->status = Error;
         emit statusChanged(d->status);
 
-        if (sourceSize() != d->oldSourceSize) {
-            d->oldSourceSize = sourceSize();
+        d->currentSourceSize = QSize(0, 0);
+        if (d->currentSourceSize != d->oldSourceSize) {
+            d->oldSourceSize = d->currentSourceSize;
             emit sourceSizeChanged();
         }
         if (isPlaying() != d->oldPlaying)
@@ -421,8 +423,14 @@ void QQuickAnimatedImage::movieRequestFinished()
 
     if (isPlaying() != d->oldPlaying)
         emit playingChanged();
-    if (sourceSize() != d->oldSourceSize) {
-        d->oldSourceSize = sourceSize();
+
+    if (d->_movie)
+        d->currentSourceSize = d->_movie->currentPixmap().size();
+    else
+        d->currentSourceSize = QSize(0, 0);
+
+    if (d->currentSourceSize != d->oldSourceSize) {
+        d->oldSourceSize = d->currentSourceSize;
         emit sourceSizeChanged();
     }
 }
@@ -475,9 +483,7 @@ void QQuickAnimatedImage::onCacheChanged()
 QSize QQuickAnimatedImage::sourceSize()
 {
     Q_D(QQuickAnimatedImage);
-    if (!d->_movie)
-        return QSize(0, 0);
-    return QSize(d->_movie->currentPixmap().size());
+    return d->currentSourceSize;
 }
 
 void QQuickAnimatedImage::componentComplete()
diff --git a/src/quick/items/qquickanimatedimage_p_p.h b/src/quick/items/qquickanimatedimage_p_p.h
index 9b284f966d..ed735d1c9c 100644
--- a/src/quick/items/qquickanimatedimage_p_p.h
+++ b/src/quick/items/qquickanimatedimage_p_p.h
@@ -72,6 +72,7 @@ public:
 #ifndef QT_NO_NETWORK
         , reply(0), redirectCount(0)
 #endif
+        , currentSourceSize(0, 0)
     {
     }
 
@@ -87,6 +88,7 @@ public:
     int redirectCount;
 #endif
     QMap<int, QQuickPixmap *> frameMap;
+    QSize currentSourceSize;
 };
 
 QT_END_NAMESPACE
diff --git a/src/quick/items/qquickdrag.cpp b/src/quick/items/qquickdrag.cpp
index 4aa54b71df..cc30199253 100644
--- a/src/quick/items/qquickdrag.cpp
+++ b/src/quick/items/qquickdrag.cpp
@@ -45,6 +45,7 @@
 #include <private/qquickitem_p.h>
 #include <QtQuick/private/qquickevents_p_p.h>
 #include <private/qquickitemchangelistener_p.h>
+#include <private/qquickpixmapcache_p.h>
 #include <private/qv8engine_p.h>
 #include <private/qv4scopedvalue_p.h>
 #include <QtCore/qmimedata.h>
@@ -110,6 +111,8 @@ public:
     bool eventQueued : 1;
     bool overrideActions : 1;
     QPointF hotSpot;
+    QUrl imageSource;
+    QQuickPixmap pixmapLoader;
     QStringList keys;
     QVariantMap externalMimeData;
     QQuickDrag::DragType dragType;
@@ -307,13 +310,14 @@ void QQuickDragAttached::setActive(bool active)
         else if (active) {
             if (d->dragType == QQuickDrag::Internal) {
                 d->start(d->supportedActions);
-            }
-            else if (d->dragType == QQuickDrag::Automatic) {
-                // There are different semantics than start() since startDrag()
-                // may be called after an internal drag is already started.
-                active = true;
+            } else {
+                d->active = true;
                 emit activeChanged();
-                d->startDrag(d->supportedActions);
+                if (d->dragType == QQuickDrag::Automatic) {
+                    // There are different semantics than start() since startDrag()
+                    // may be called after an internal drag is already started.
+                    d->startDrag(d->supportedActions);
+                }
             }
         }
         else
@@ -408,6 +412,43 @@ void QQuickDragAttached::setHotSpot(const QPointF &hotSpot)
 }
 
 /*!
+    \qmlattachedproperty QUrl QtQuick::Drag::imageSource
+    \since 5.8
+
+    This property holds the URL of the image which will be used to represent
+    the data during the drag and drop operation. Changing this property after
+    the drag operation has started will have no effect.
+
+    The example below uses an item's contents as a drag image:
+
+    \snippet qml/externaldrag.qml 0
+
+    \sa Item::grabToImage()
+*/
+
+QUrl QQuickDragAttached::imageSource() const
+{
+    Q_D(const QQuickDragAttached);
+    return d->imageSource;
+}
+
+void QQuickDragAttached::setImageSource(const QUrl &url)
+{
+    Q_D(QQuickDragAttached);
+    if (d->imageSource != url) {
+        d->imageSource = url;
+
+        if (url.isEmpty()) {
+            d->pixmapLoader.clear();
+        } else {
+            d->pixmapLoader.load(qmlEngine(this), url);
+        }
+
+        Q_EMIT imageSourceChanged();
+    }
+}
+
+/*!
     \qmlattachedproperty stringlist QtQuick::Drag::keys
 
     This property holds a list of keys that can be used by a DropArea to filter drag events.
@@ -726,9 +767,9 @@ Qt::DropAction QQuickDragAttachedPrivate::startDrag(Qt::DropActions supportedAct
         mimeData->setData(it.key(), it.value().toString().toUtf8());
 
     drag->setMimeData(mimeData);
-
-    // TODO: how to handle drag image?
-    // drag->setPixmap(iconPixmap);
+    if (pixmapLoader.isReady()) {
+        drag->setPixmap(QPixmap::fromImage(pixmapLoader.image()));
+    }
 
     emit q->dragStarted();
 
diff --git a/src/quick/items/qquickdrag_p.h b/src/quick/items/qquickdrag_p.h
index c1695e49f0..17721251d9 100644
--- a/src/quick/items/qquickdrag_p.h
+++ b/src/quick/items/qquickdrag_p.h
@@ -58,6 +58,7 @@
 
 #include <QtCore/qmimedata.h>
 #include <QtCore/qstringlist.h>
+#include <QtCore/qurl.h>
 
 #ifndef QT_NO_DRAGANDDROP
 
@@ -247,6 +248,7 @@ class QQuickDragAttached : public QObject
     Q_PROPERTY(QObject *source READ source WRITE setSource NOTIFY sourceChanged RESET resetSource)
     Q_PROPERTY(QObject *target READ target NOTIFY targetChanged)
     Q_PROPERTY(QPointF hotSpot READ hotSpot WRITE setHotSpot NOTIFY hotSpotChanged)
+    Q_PROPERTY(QUrl imageSource READ imageSource WRITE setImageSource NOTIFY imageSourceChanged REVISION 8)
     Q_PROPERTY(QStringList keys READ keys WRITE setKeys NOTIFY keysChanged)
     Q_PROPERTY(QVariantMap mimeData READ mimeData WRITE setMimeData NOTIFY mimeDataChanged)
     Q_PROPERTY(Qt::DropActions supportedActions READ supportedActions WRITE setSupportedActions NOTIFY supportedActionsChanged)
@@ -268,6 +270,9 @@ public:
     QPointF hotSpot() const;
     void setHotSpot(const QPointF &hotSpot);
 
+    QUrl imageSource() const;
+    void setImageSource(const QUrl &url);
+
     QStringList keys() const;
     void setKeys(const QStringList &keys);
 
@@ -300,6 +305,7 @@ Q_SIGNALS:
     void sourceChanged();
     void targetChanged();
     void hotSpotChanged();
+    void imageSourceChanged();
     void keysChanged();
     void mimeDataChanged();
     void supportedActionsChanged();
diff --git a/src/quick/items/qquickflickable.cpp b/src/quick/items/qquickflickable.cpp
index b0245f402b..ae138d7ceb 100644
--- a/src/quick/items/qquickflickable.cpp
+++ b/src/quick/items/qquickflickable.cpp
@@ -881,6 +881,10 @@ QQuickFlickableVisibleArea *QQuickFlickable::visibleArea()
     \e contentHeight is not equal to the \e height of the Flickable.
     Allows flicking horizontally if the \e contentWidth is not equal
     to the \e width of the Flickable.
+    \li Flickable.AutoFlickIfNeeded - allows flicking vertically if the
+    \e contentHeight is greater than the \e height of the Flickable.
+    Allows flicking horizontally if the \e contentWidth is greater than
+    to the \e width of the Flickable.
     \li Flickable.HorizontalFlick - allows flicking horizontally.
     \li Flickable.VerticalFlick - allows flicking vertically.
     \li Flickable.HorizontalAndVerticalFlick - allows flicking in both directions.
@@ -2167,6 +2171,8 @@ qreal QQuickFlickable::vHeight() const
 bool QQuickFlickable::xflick() const
 {
     Q_D(const QQuickFlickable);
+    if ((d->flickableDirection & QQuickFlickable::AutoFlickIfNeeded) && (vWidth() > width()))
+        return true;
     if (d->flickableDirection == QQuickFlickable::AutoFlickDirection)
         return std::floor(qAbs(vWidth() - width()));
     return d->flickableDirection & QQuickFlickable::HorizontalFlick;
@@ -2175,6 +2181,8 @@ bool QQuickFlickable::xflick() const
 bool QQuickFlickable::yflick() const
 {
     Q_D(const QQuickFlickable);
+    if ((d->flickableDirection & QQuickFlickable::AutoFlickIfNeeded) && (vHeight() > height()))
+        return true;
     if (d->flickableDirection == QQuickFlickable::AutoFlickDirection)
         return std::floor(qAbs(vHeight() - height()));
     return d->flickableDirection & QQuickFlickable::VerticalFlick;
diff --git a/src/quick/items/qquickflickable_p.h b/src/quick/items/qquickflickable_p.h
index 6cf78dcf63..318b8ce473 100644
--- a/src/quick/items/qquickflickable_p.h
+++ b/src/quick/items/qquickflickable_p.h
@@ -192,7 +192,8 @@ public:
 
     QQuickItem *contentItem();
 
-    enum FlickableDirection { AutoFlickDirection=0x00, HorizontalFlick=0x01, VerticalFlick=0x02, HorizontalAndVerticalFlick=0x03 };
+    enum FlickableDirection { AutoFlickDirection=0x0, HorizontalFlick=0x1, VerticalFlick=0x2, HorizontalAndVerticalFlick=0x3,
+                              AutoFlickIfNeeded=0xc };
     Q_ENUM(FlickableDirection)
     FlickableDirection flickableDirection() const;
     void setFlickableDirection(FlickableDirection);
diff --git a/src/quick/items/qquickimage.cpp b/src/quick/items/qquickimage.cpp
index 34b8f0ac49..c04a526bd0 100644
--- a/src/quick/items/qquickimage.cpp
+++ b/src/quick/items/qquickimage.cpp
@@ -714,9 +714,9 @@ QSGNode *QQuickImage::updatePaintNode(QSGNode *oldNode, UpdatePaintNodeData *)
                   sourceRect.height() / nsHeight);
 
     if (targetRect.isEmpty()
-        || !qIsFinite(targetRect.width()) || !qIsFinite(targetRect.height())
+        || !qt_is_finite(targetRect.width()) || !qt_is_finite(targetRect.height())
         || nsrect.isEmpty()
-        || !qIsFinite(nsrect.width()) || !qIsFinite(nsrect.height())) {
+        || !qt_is_finite(nsrect.width()) || !qt_is_finite(nsrect.height())) {
         delete node;
         return 0;
     }
diff --git a/src/quick/items/qquickimagebase.cpp b/src/quick/items/qquickimagebase.cpp
index 8117baa2fe..60e31631c0 100644
--- a/src/quick/items/qquickimagebase.cpp
+++ b/src/quick/items/qquickimagebase.cpp
@@ -225,7 +225,7 @@ void QQuickImageBase::load()
         // sourceSize is set. If sourceSize is not set then the provider default size
         // will be used, as usual.
         bool setDevicePixelRatio = false;
-        if (!d->sourcesize.isValid()) {
+        if (d->sourcesize.isValid()) {
             if (loadUrl.scheme() == QLatin1String("image")) {
                 setDevicePixelRatio = true;
             } else {
diff --git a/src/quick/items/qquickitem.cpp b/src/quick/items/qquickitem.cpp
index 1100b12cbc..d6fdf5795e 100644
--- a/src/quick/items/qquickitem.cpp
+++ b/src/quick/items/qquickitem.cpp
@@ -1632,7 +1632,7 @@ void QQuickItemPrivate::setLayoutMirror(bool mirror)
 */
 
 /*!
-    \qmlproperty enumeration QtQuick::EnterKey::type
+    \qmlattachedproperty enumeration QtQuick::EnterKey::type
 
     Holds the type of the Enter key.
 
@@ -2647,7 +2647,7 @@ void QQuickItem::setParentItem(QQuickItem *parentItem)
 
         QQuickItem *scopeItem = 0;
 
-        if (hasFocus())
+        if (hasFocus() || op->subFocusItem == this)
             scopeFocusedItem = this;
         else if (!isFocusScope() && d->subFocusItem)
             scopeFocusedItem = d->subFocusItem;
@@ -3117,7 +3117,6 @@ QQuickItemPrivate::QQuickItemPrivate()
     , flags(0)
     , widthValid(false)
     , heightValid(false)
-    , baselineOffsetValid(false)
     , componentComplete(true)
     , keepMouse(false)
     , keepTouch(false)
@@ -3192,7 +3191,7 @@ void QQuickItemPrivate::init(QQuickItem *parent)
 
     registerAccessorProperties();
 
-    baselineOffsetValid = false;
+    baselineOffset = 0.0;
 
     if (parent) {
         q->setParentItem(parent);
@@ -4168,6 +4167,23 @@ QVariant QQuickItem::inputMethodQuery(Qt::InputMethodQuery query) const
         if (d->extra.isAllocated() && d->extra->enterKeyAttached)
             v = d->extra->enterKeyAttached->type();
         break;
+    case Qt::ImInputItemClipRectangle:
+        if (!(!window() ||!isVisible() || qFuzzyIsNull(opacity()))) {
+            QRectF rect = QRectF(0,0, width(), height());
+            const QQuickItem *par = this;
+            while (QQuickItem *parpar = par->parentItem()) {
+                rect = parpar->mapRectFromItem(par, rect);
+                if (parpar->clip())
+                    rect = rect.intersected(parpar->clipRect());
+                par = parpar;
+            }
+            rect = par->mapRectToScene(rect);
+            // once we have the rect in scene coordinates, clip to window
+            rect = rect.intersected(QRectF(QPoint(0,0), window()->size()));
+            // map it back to local coordinates
+            v = mapRectFromScene(rect);
+        }
+        break;
     default:
         break;
     }
@@ -4179,43 +4195,43 @@ QVariant QQuickItem::inputMethodQuery(Qt::InputMethodQuery query) const
 QQuickAnchorLine QQuickItemPrivate::left() const
 {
     Q_Q(const QQuickItem);
-    return QQuickAnchorLine(const_cast<QQuickItem *>(q), QQuickAnchorLine::Left);
+    return QQuickAnchorLine(const_cast<QQuickItem *>(q), QQuickAnchors::LeftAnchor);
 }
 
 QQuickAnchorLine QQuickItemPrivate::right() const
 {
     Q_Q(const QQuickItem);
-    return QQuickAnchorLine(const_cast<QQuickItem *>(q), QQuickAnchorLine::Right);
+    return QQuickAnchorLine(const_cast<QQuickItem *>(q), QQuickAnchors::RightAnchor);
 }
 
 QQuickAnchorLine QQuickItemPrivate::horizontalCenter() const
 {
     Q_Q(const QQuickItem);
-    return QQuickAnchorLine(const_cast<QQuickItem *>(q), QQuickAnchorLine::HCenter);
+    return QQuickAnchorLine(const_cast<QQuickItem *>(q), QQuickAnchors::HCenterAnchor);
 }
 
 QQuickAnchorLine QQuickItemPrivate::top() const
 {
     Q_Q(const QQuickItem);
-    return QQuickAnchorLine(const_cast<QQuickItem *>(q), QQuickAnchorLine::Top);
+    return QQuickAnchorLine(const_cast<QQuickItem *>(q), QQuickAnchors::TopAnchor);
 }
 
 QQuickAnchorLine QQuickItemPrivate::bottom() const
 {
     Q_Q(const QQuickItem);
-    return QQuickAnchorLine(const_cast<QQuickItem *>(q), QQuickAnchorLine::Bottom);
+    return QQuickAnchorLine(const_cast<QQuickItem *>(q), QQuickAnchors::BottomAnchor);
 }
 
 QQuickAnchorLine QQuickItemPrivate::verticalCenter() const
 {
     Q_Q(const QQuickItem);
-    return QQuickAnchorLine(const_cast<QQuickItem *>(q), QQuickAnchorLine::VCenter);
+    return QQuickAnchorLine(const_cast<QQuickItem *>(q), QQuickAnchors::VCenterAnchor);
 }
 
 QQuickAnchorLine QQuickItemPrivate::baseline() const
 {
     Q_Q(const QQuickItem);
-    return QQuickAnchorLine(const_cast<QQuickItem *>(q), QQuickAnchorLine::Baseline);
+    return QQuickAnchorLine(const_cast<QQuickItem *>(q), QQuickAnchors::BaselineAnchor);
 }
 
 /*!
@@ -4243,11 +4259,7 @@ QQuickAnchorLine QQuickItemPrivate::baseline() const
 qreal QQuickItem::baselineOffset() const
 {
     Q_D(const QQuickItem);
-    if (d->baselineOffsetValid) {
-        return d->baselineOffset;
-    } else {
-        return 0.0;
-    }
+    return d->baselineOffset;
 }
 
 void QQuickItem::setBaselineOffset(qreal offset)
@@ -4257,7 +4269,6 @@ void QQuickItem::setBaselineOffset(qreal offset)
         return;
 
     d->baselineOffset = offset;
-    d->baselineOffsetValid = true;
 
     for (int ii = 0; ii < d->changeListeners.count(); ++ii) {
         const QQuickItemPrivate::ChangeListener &change = d->changeListeners.at(ii);
@@ -6253,6 +6264,8 @@ QPointF QQuickItem::position() const
 void QQuickItem::setX(qreal v)
 {
     Q_D(QQuickItem);
+    if (qIsNaN(v))
+        return;
     if (d->x == v)
         return;
 
@@ -6268,6 +6281,8 @@ void QQuickItem::setX(qreal v)
 void QQuickItem::setY(qreal v)
 {
     Q_D(QQuickItem);
+    if (qIsNaN(v))
+        return;
     if (d->y == v)
         return;
 
diff --git a/src/quick/items/qquickitem_p.h b/src/quick/items/qquickitem_p.h
index 46b08b11fb..846063a58b 100644
--- a/src/quick/items/qquickitem_p.h
+++ b/src/quick/items/qquickitem_p.h
@@ -401,7 +401,6 @@ public:
     quint32 flags:5;
     bool widthValid:1;
     bool heightValid:1;
-    bool baselineOffsetValid:1;
     bool componentComplete:1;
     bool keepMouse:1;
     bool keepTouch:1;
@@ -410,8 +409,8 @@ public:
     bool antialiasing:1;
     bool focus:1;
     bool activeFocus:1;
-    // Bit 16
     bool notifiedFocus:1;
+    // Bit 16
     bool notifiedActiveFocus:1;
     bool filtersChildMouseEvents:1;
     bool explicitVisible:1;
@@ -427,8 +426,8 @@ public:
     bool isAccessible:1;
     bool culled:1;
     bool hasCursor:1;
-    // Bit 32
     bool hasCursorInChild:1;
+    // Bit 32
     bool hasHoverInChild:1;
     bool activeFocusOnTab:1;
     bool implicitAntialiasing:1;
diff --git a/src/quick/items/qquickitemgrabresult.cpp b/src/quick/items/qquickitemgrabresult.cpp
index f69b5b3f4b..807a2ae304 100644
--- a/src/quick/items/qquickitemgrabresult.cpp
+++ b/src/quick/items/qquickitemgrabresult.cpp
@@ -59,6 +59,7 @@ class QQuickItemGrabResultPrivate : public QObjectPrivate
 public:
     QQuickItemGrabResultPrivate()
         : cacheEntry(0)
+        , qmlEngine(0)
         , texture(0)
     {
     }
diff --git a/src/quick/items/qquickitemsmodule.cpp b/src/quick/items/qquickitemsmodule.cpp
index fb5bc3683f..3ccbf4b140 100644
--- a/src/quick/items/qquickitemsmodule.cpp
+++ b/src/quick/items/qquickitemsmodule.cpp
@@ -292,6 +292,7 @@ static void qt_quickitems_defineModule(const char *uri, int major, int minor)
     qmlRegisterType<QQuickGridView, 7>(uri, 2, 7, "GridView");
     qmlRegisterType<QQuickTextInput, 7>(uri, 2, 7, "TextInput");
     qmlRegisterType<QQuickTextEdit, 7>(uri, 2, 7, "TextEdit");
+    qmlRegisterType<QQuickPathView, 7>(uri, 2, 7, "PathView");
 
     qmlRegisterUncreatableType<QQuickMouseEvent, 7>(uri, 2, 7, nullptr, QQuickMouseEvent::tr("MouseEvent is only available within handlers in MouseArea"));
 
diff --git a/src/quick/items/qquickopenglshadereffect.cpp b/src/quick/items/qquickopenglshadereffect.cpp
index f6f2503cd0..312721ed04 100644
--- a/src/quick/items/qquickopenglshadereffect.cpp
+++ b/src/quick/items/qquickopenglshadereffect.cpp
@@ -774,7 +774,6 @@ QSGNode *QQuickOpenGLShaderEffect::handleUpdatePaintNode(QSGNode *oldNode, QQuic
             builder.appendSourceFile(QStringLiteral(":/qt-project.org/items/shaders/shadereffect.vert"));
             s.sourceCode[Key::VertexShader] = builder.source();
         }
-        s.className = metaObject()->className();
 
         material->setProgramSource(s);
         material->attributes = m_common.attributes;
diff --git a/src/quick/items/qquickopenglshadereffectnode.cpp b/src/quick/items/qquickopenglshadereffectnode.cpp
index 864c968505..c4dd8d5c63 100644
--- a/src/quick/items/qquickopenglshadereffectnode.cpp
+++ b/src/quick/items/qquickopenglshadereffectnode.cpp
@@ -334,8 +334,6 @@ const char *QQuickCustomMaterialShader::fragmentShader() const
 
 bool QQuickOpenGLShaderEffectMaterialKey::operator == (const QQuickOpenGLShaderEffectMaterialKey &other) const
 {
-    if (className != other.className)
-        return false;
     for (int shaderType = 0; shaderType < ShaderTypeCount; ++shaderType) {
         if (sourceCode[shaderType] != other.sourceCode[shaderType])
             return false;
@@ -350,7 +348,7 @@ bool QQuickOpenGLShaderEffectMaterialKey::operator != (const QQuickOpenGLShaderE
 
 uint qHash(const QQuickOpenGLShaderEffectMaterialKey &key)
 {
-    uint hash = qHash((const void *)key.className);
+    uint hash = 1;
     typedef QQuickOpenGLShaderEffectMaterialKey Key;
     for (int shaderType = 0; shaderType < Key::ShaderTypeCount; ++shaderType)
         hash = hash * 31337 + qHash(key.sourceCode[shaderType]);
diff --git a/src/quick/items/qquickopenglshadereffectnode_p.h b/src/quick/items/qquickopenglshadereffectnode_p.h
index 1adfa4dd29..adf5ef730b 100644
--- a/src/quick/items/qquickopenglshadereffectnode_p.h
+++ b/src/quick/items/qquickopenglshadereffectnode_p.h
@@ -72,7 +72,6 @@ struct QQuickOpenGLShaderEffectMaterialKey {
     };
 
     QByteArray sourceCode[ShaderTypeCount];
-    const char *className;
 
     bool operator == (const QQuickOpenGLShaderEffectMaterialKey &other) const;
     bool operator != (const QQuickOpenGLShaderEffectMaterialKey &other) const;
diff --git a/src/quick/items/qquickpainteditem.cpp b/src/quick/items/qquickpainteditem.cpp
index 5813b4b115..d21eb93dbf 100644
--- a/src/quick/items/qquickpainteditem.cpp
+++ b/src/quick/items/qquickpainteditem.cpp
@@ -674,4 +674,11 @@ QSGTextureProvider *QQuickPaintedItem::textureProvider() const
     return d->textureProvider;
 }
 
+void QQuickPaintedItem::itemChange(ItemChange change, const ItemChangeData &value)
+{
+    if (change == ItemDevicePixelRatioHasChanged)
+        update();
+    QQuickItem::itemChange(change, value);
+}
+
 QT_END_NAMESPACE
diff --git a/src/quick/items/qquickpainteditem.h b/src/quick/items/qquickpainteditem.h
index f9e3c91a42..e8b471ac01 100644
--- a/src/quick/items/qquickpainteditem.h
+++ b/src/quick/items/qquickpainteditem.h
@@ -121,6 +121,7 @@ protected:
     QQuickPaintedItem(QQuickPaintedItemPrivate &dd, QQuickItem *parent = Q_NULLPTR);
     QSGNode *updatePaintNode(QSGNode *, UpdatePaintNodeData *) Q_DECL_OVERRIDE;
     void releaseResources() Q_DECL_OVERRIDE;
+    void itemChange(ItemChange, const ItemChangeData &) Q_DECL_OVERRIDE;
 
 private Q_SLOTS:
     void invalidateSceneGraph();
diff --git a/src/quick/items/qquickpathview.cpp b/src/quick/items/qquickpathview.cpp
index f0bbb1e732..e3d218ff01 100644
--- a/src/quick/items/qquickpathview.cpp
+++ b/src/quick/items/qquickpathview.cpp
@@ -105,7 +105,8 @@ QQuickPathViewPrivate::QQuickPathViewPrivate()
     , dragMargin(0), deceleration(100), maximumFlickVelocity(QML_FLICK_DEFAULTMAXVELOCITY)
     , moveOffset(this, &QQuickPathViewPrivate::setAdjustedOffset), flickDuration(0)
     , pathItems(-1), requestedIndex(-1), cacheSize(0), requestedZ(0)
-    , moveReason(Other), moveDirection(Shortest), attType(0), highlightComponent(0), highlightItem(0)
+    , moveReason(Other), movementDirection(QQuickPathView::Shortest), moveDirection(QQuickPathView::Shortest)
+    , attType(0), highlightComponent(0), highlightItem(0)
     , moveHighlight(this, &QQuickPathViewPrivate::setHighlightPosition)
     , highlightPosition(0)
     , highlightRangeStart(0), highlightRangeEnd(0)
@@ -790,7 +791,7 @@ QQuickItem *QQuickPathView::currentItem() const
 void QQuickPathView::incrementCurrentIndex()
 {
     Q_D(QQuickPathView);
-    d->moveDirection = QQuickPathViewPrivate::Positive;
+    d->moveDirection = QQuickPathView::Positive;
     setCurrentIndex(currentIndex()+1);
 }
 
@@ -804,7 +805,7 @@ void QQuickPathView::incrementCurrentIndex()
 void QQuickPathView::decrementCurrentIndex()
 {
     Q_D(QQuickPathView);
-    d->moveDirection = QQuickPathViewPrivate::Negative;
+    d->moveDirection = QQuickPathView::Negative;
     setCurrentIndex(currentIndex()-1);
 }
 
@@ -1373,6 +1374,48 @@ void QQuickPathView::setSnapMode(SnapMode mode)
 }
 
 /*!
+    \qmlproperty enumeration QtQuick::PathView::movementDirection
+    \since 5.7
+
+    This property determines the direction in which items move when setting the current index.
+    The possible values are:
+
+    \list
+    \li PathView.Shortest (default) - the items move in the direction that requires the least
+        movement, which could be either \c Negative or \c Positive.
+    \li PathView.Negative - the items move backwards towards their destination.
+    \li PathView.Positive - the items move forwards towards their destination.
+    \endlist
+
+    For example, suppose that there are 5 items in the model, and \l currentIndex is \c 0.
+    If currentIndex is set to \c 2,
+
+    \list
+    \li a \c Positive movement direction will result in the following order: 0, 1, 2
+    \li a \c Negative movement direction will result in the following order: 0, 5, 4, 3, 2
+    \li a \c Shortest movement direction will result in same order with \c Positive .
+    \endlist
+
+    \note this property doesn't affect the movement of \l incrementCurrentIndex() and \l decrementCurrentIndex().
+*/
+QQuickPathView::MovementDirection QQuickPathView::movementDirection() const
+{
+    Q_D(const QQuickPathView);
+    return d->movementDirection;
+}
+
+void QQuickPathView::setMovementDirection(QQuickPathView::MovementDirection dir)
+{
+    Q_D(QQuickPathView);
+    if (dir == d->movementDirection)
+        return;
+    d->movementDirection = dir;
+    if (!d->tl.isActive())
+        d->moveDirection = d->movementDirection;
+    emit movementDirectionChanged();
+}
+
+/*!
     \qmlmethod QtQuick::PathView::positionViewAtIndex(int index, PositionMode mode)
 
     Positions the view such that the \a index is at the position specified by
@@ -1910,7 +1953,7 @@ void QQuickPathView::refill()
         if (lcItemViewDelegateLifecycle().isDebugEnabled()) {
             QQuickText *text = qmlobject_cast<QQuickText*>(item);
             if (text)
-                qCDebug(lcItemViewDelegateLifecycle) << "idx" << idx << "@" << pos << ": QQuickText" << text->objectName() << text->text().left(40);
+                qCDebug(lcItemViewDelegateLifecycle) << "idx" << idx << "@" << pos << ": QQuickText" << text->objectName() << text->text().leftRef(40);
             else
                 qCDebug(lcItemViewDelegateLifecycle) << "idx" << idx << "@" << pos << ":" << item;
         }
@@ -2231,6 +2274,7 @@ void QQuickPathView::movementEnding()
         emit movingChanged();
         emit movementEnded();
     }
+    d->moveDirection = d->movementDirection;
 }
 
 // find the item closest to the snap position
@@ -2340,7 +2384,7 @@ void QQuickPathViewPrivate::snapToIndex(int index, MovementReason reason)
 
     if (!duration) {
         tl.set(moveOffset, targetOffset);
-    } else if (moveDirection == Positive || (moveDirection == Shortest && targetOffset - offset > modelCount/2.0)) {
+    } else if (moveDirection == QQuickPathView::Positive || (moveDirection == QQuickPathView::Shortest && targetOffset - offset > modelCount/2.0)) {
         qreal distance = modelCount - targetOffset + offset;
         if (targetOffset > moveOffset) {
             tl.move(moveOffset, 0.0, QEasingCurve(QEasingCurve::InQuad), int(duration * offset / distance));
@@ -2349,7 +2393,7 @@ void QQuickPathViewPrivate::snapToIndex(int index, MovementReason reason)
         } else {
             tl.move(moveOffset, targetOffset, QEasingCurve(QEasingCurve::InOutQuad), duration);
         }
-    } else if (moveDirection == Negative || targetOffset - offset <= -modelCount/2.0) {
+    } else if (moveDirection == QQuickPathView::Negative || targetOffset - offset <= -modelCount/2.0) {
         qreal distance = modelCount - offset + targetOffset;
         if (targetOffset < moveOffset) {
             tl.move(moveOffset, modelCount, QEasingCurve(targetOffset == 0 ? QEasingCurve::InOutQuad : QEasingCurve::InQuad), int(duration * (modelCount-offset) / distance));
@@ -2361,7 +2405,6 @@ void QQuickPathViewPrivate::snapToIndex(int index, MovementReason reason)
     } else {
         tl.move(moveOffset, targetOffset, QEasingCurve(QEasingCurve::InOutQuad), duration);
     }
-    moveDirection = Shortest;
 }
 
 QQuickPathViewAttached *QQuickPathView::qmlAttachedProperties(QObject *obj)
diff --git a/src/quick/items/qquickpathview_p.h b/src/quick/items/qquickpathview_p.h
index 341af02013..daec965f02 100644
--- a/src/quick/items/qquickpathview_p.h
+++ b/src/quick/items/qquickpathview_p.h
@@ -92,6 +92,7 @@ class Q_AUTOTEST_EXPORT QQuickPathView : public QQuickItem
     Q_PROPERTY(QQmlComponent *delegate READ delegate WRITE setDelegate NOTIFY delegateChanged)
     Q_PROPERTY(int pathItemCount READ pathItemCount WRITE setPathItemCount RESET resetPathItemCount NOTIFY pathItemCountChanged)
     Q_PROPERTY(SnapMode snapMode READ snapMode WRITE setSnapMode NOTIFY snapModeChanged)
+    Q_PROPERTY(MovementDirection movementDirection READ movementDirection WRITE setMovementDirection NOTIFY movementDirectionChanged REVISION 7)
 
     Q_PROPERTY(int cacheItemCount READ cacheItemCount WRITE setCacheItemCount NOTIFY cacheItemCountChanged)
 
@@ -164,6 +165,11 @@ public:
     SnapMode snapMode() const;
     void setSnapMode(SnapMode mode);
 
+    enum MovementDirection { Shortest, Negative, Positive };
+    Q_ENUM(MovementDirection)
+    MovementDirection movementDirection() const;
+    void setMovementDirection(MovementDirection dir);
+
     enum PositionMode { Beginning, Center, End, Contain=4, SnapPosition }; // 3 == Visible in other views
     Q_ENUM(PositionMode)
     Q_INVOKABLE void positionViewAtIndex(int index, int mode);
@@ -201,6 +207,7 @@ Q_SIGNALS:
     void highlightMoveDurationChanged();
     void movementStarted();
     void movementEnded();
+    Q_REVISION(7) void movementDirectionChanged();
     void flickStarted();
     void flickEnded();
     void dragStarted();
diff --git a/src/quick/items/qquickpathview_p_p.h b/src/quick/items/qquickpathview_p_p.h
index 8236d9efd2..d9c4baf572 100644
--- a/src/quick/items/qquickpathview_p_p.h
+++ b/src/quick/items/qquickpathview_p_p.h
@@ -171,8 +171,8 @@ public:
     QPointer<QQmlInstanceModel> model;
     QVariant modelVariant;
     MovementReason moveReason;
-    enum MovementDirection { Shortest, Negative, Positive };
-    MovementDirection moveDirection;
+    QQuickPathView::MovementDirection movementDirection; // default
+    QQuickPathView::MovementDirection moveDirection; // next movement
     QQmlOpenMetaObjectType *attType;
     QQmlComponent *highlightComponent;
     QQuickItem *highlightItem;
diff --git a/src/quick/items/qquickrectangle.cpp b/src/quick/items/qquickrectangle.cpp
index 74ca0f482a..b8c680433e 100644
--- a/src/quick/items/qquickrectangle.cpp
+++ b/src/quick/items/qquickrectangle.cpp
@@ -44,7 +44,6 @@
 #include <private/qsgadaptationlayer_p.h>
 
 #include <QtGui/qpixmapcache.h>
-#include <QtCore/qstringbuilder.h>
 #include <QtCore/qmath.h>
 #include <QtCore/qmetaobject.h>
 
diff --git a/src/quick/items/qquickscalegrid.cpp b/src/quick/items/qquickscalegrid.cpp
index f860c08bad..d7a0f1b681 100644
--- a/src/quick/items/qquickscalegrid.cpp
+++ b/src/quick/items/qquickscalegrid.cpp
@@ -136,39 +136,38 @@ QQuickGridScaledImage::QQuickGridScaledImage(QIODevice *data)
         if (colonId <= 0)
             return;
 
-        QStringList list;
-        list.append(line.left(colonId).trimmed());
-        list.append(line.mid(colonId+1).trimmed());
-
-        if (list[0] == QLatin1String("border.left"))
-            l = list[1].toInt();
-        else if (list[0] == QLatin1String("border.right"))
-            r = list[1].toInt();
-        else if (list[0] == QLatin1String("border.top"))
-            t = list[1].toInt();
-        else if (list[0] == QLatin1String("border.bottom"))
-            b = list[1].toInt();
-        else if (list[0] == QLatin1String("source"))
-            imgFile = list[1];
-        else if (list[0] == QLatin1String("horizontalTileRule") || list[0] == QLatin1String("horizontalTileMode"))
-            _h = stringToRule(list[1]);
-        else if (list[0] == QLatin1String("verticalTileRule") || list[0] == QLatin1String("verticalTileMode"))
-            _v = stringToRule(list[1]);
+        const QStringRef property = line.leftRef(colonId).trimmed();
+        QStringRef value = line.midRef(colonId + 1).trimmed();
+
+        if (property == QLatin1String("border.left")) {
+            l = value.toInt();
+        } else if (property == QLatin1String("border.right")) {
+            r = value.toInt();
+        } else if (property == QLatin1String("border.top")) {
+            t = value.toInt();
+        } else if (property == QLatin1String("border.bottom")) {
+            b = value.toInt();
+        } else if (property == QLatin1String("source")) {
+            if (value.startsWith(QLatin1Char('"')) && value.endsWith(QLatin1Char('"')))
+                value = value.mid(1, value.size() - 2); // remove leading/trailing quotes.
+            imgFile = value.toString();
+        } else if (property == QLatin1String("horizontalTileRule") || property == QLatin1String("horizontalTileMode")) {
+            _h = stringToRule(value);
+        } else if (property == QLatin1String("verticalTileRule") || property == QLatin1String("verticalTileMode")) {
+            _v = stringToRule(value);
+        }
     }
 
     if (l < 0 || r < 0 || t < 0 || b < 0 || imgFile.isEmpty())
         return;
 
     _l = l; _r = r; _t = t; _b = b;
-
     _pix = imgFile;
-    if (_pix.startsWith(QLatin1Char('"')) && _pix.endsWith(QLatin1Char('"')))
-        _pix = _pix.mid(1, _pix.size() - 2); // remove leading/trailing quotes.
 }
 
-QQuickBorderImage::TileMode QQuickGridScaledImage::stringToRule(const QString &s)
+QQuickBorderImage::TileMode QQuickGridScaledImage::stringToRule(const QStringRef &s)
 {
-    QString string = s;
+    QStringRef string = s;
     if (string.startsWith(QLatin1Char('"')) && string.endsWith(QLatin1Char('"')))
         string = string.mid(1, string.size() - 2); // remove leading/trailing quotes.
 
diff --git a/src/quick/items/qquickscalegrid_p_p.h b/src/quick/items/qquickscalegrid_p_p.h
index a424002dfb..7f6a31a7bd 100644
--- a/src/quick/items/qquickscalegrid_p_p.h
+++ b/src/quick/items/qquickscalegrid_p_p.h
@@ -116,7 +116,7 @@ public:
     QString pixmapUrl() const;
 
 private:
-    static QQuickBorderImage::TileMode stringToRule(const QString &);
+    static QQuickBorderImage::TileMode stringToRule(const QStringRef &);
 
 private:
     int _l;
diff --git a/src/quick/items/qquicktext_p.h b/src/quick/items/qquicktext_p.h
index 0b35ad5f91..40dbd51f39 100644
--- a/src/quick/items/qquicktext_p.h
+++ b/src/quick/items/qquicktext_p.h
@@ -254,16 +254,16 @@ Q_SIGNALS:
     void fontChanged(const QFont &font);
     void colorChanged();
     void linkColorChanged();
-    void styleChanged(TextStyle style);
+    void styleChanged(QQuickText::TextStyle style);
     void styleColorChanged();
-    void horizontalAlignmentChanged(HAlignment alignment);
-    void verticalAlignmentChanged(VAlignment alignment);
+    void horizontalAlignmentChanged(QQuickText::HAlignment alignment);
+    void verticalAlignmentChanged(QQuickText::VAlignment alignment);
     void wrapModeChanged();
     void lineCountChanged();
     void truncatedChanged();
     void maximumLineCountChanged();
-    void textFormatChanged(TextFormat textFormat);
-    void elideModeChanged(TextElideMode mode);
+    void textFormatChanged(QQuickText::TextFormat textFormat);
+    void elideModeChanged(QQuickText::TextElideMode mode);
     void contentSizeChanged();
     void lineHeightChanged(qreal lineHeight);
     void lineHeightModeChanged(LineHeightMode mode);
diff --git a/src/quick/items/qquicktextcontrol.cpp b/src/quick/items/qquicktextcontrol.cpp
index 8b6cc221d5..45238e2d0c 100644
--- a/src/quick/items/qquicktextcontrol.cpp
+++ b/src/quick/items/qquicktextcontrol.cpp
@@ -109,6 +109,7 @@ QQuickTextControlPrivate::QQuickTextControlPrivate()
       overwriteMode(false),
       acceptRichText(true),
       cursorVisible(false),
+      cursorBlinkingEnabled(false),
       hasFocus(false),
       hadSelectionOnMousePress(false),
       wordSelectionEnabled(false),
@@ -463,14 +464,30 @@ void QQuickTextControlPrivate::_q_updateCursorPosChanged(const QTextCursor &some
 
 void QQuickTextControlPrivate::setBlinkingCursorEnabled(bool enable)
 {
-    Q_Q(QQuickTextControl);
+    if (cursorBlinkingEnabled == enable)
+        return;
+
+    cursorBlinkingEnabled = enable;
+    updateCursorFlashTime();
 
-    if (enable && QGuiApplication::styleHints()->cursorFlashTime() > 0)
-        cursorBlinkTimer.start(QGuiApplication::styleHints()->cursorFlashTime() / 2, q);
+    if (enable)
+        connect(qApp->styleHints(), &QStyleHints::cursorFlashTimeChanged, this, &QQuickTextControlPrivate::updateCursorFlashTime);
     else
-        cursorBlinkTimer.stop();
+        disconnect(qApp->styleHints(), &QStyleHints::cursorFlashTimeChanged, this, &QQuickTextControlPrivate::updateCursorFlashTime);
+}
 
-    cursorOn = enable;
+void QQuickTextControlPrivate::updateCursorFlashTime()
+{
+    // Note: cursorOn represents the current blinking state controlled by a timer, and
+    // should not be confused with cursorVisible or cursorBlinkingEnabled. However, we
+    // interpretate a cursorFlashTime of 0 to mean "always on, never blink".
+    cursorOn = true;
+    int flashTime = QGuiApplication::styleHints()->cursorFlashTime();
+
+    if (cursorBlinkingEnabled && flashTime >= 2)
+        cursorBlinkTimer.start(flashTime / 2, q_func());
+    else
+        cursorBlinkTimer.stop();
 
     repaintCursor();
 }
diff --git a/src/quick/items/qquicktextcontrol_p_p.h b/src/quick/items/qquicktextcontrol_p_p.h
index f312fcb1ce..0f78feb5de 100644
--- a/src/quick/items/qquicktextcontrol_p_p.h
+++ b/src/quick/items/qquicktextcontrol_p_p.h
@@ -97,6 +97,7 @@ public:
     void _q_updateCursorPosChanged(const QTextCursor &someCursor);
 
     void setBlinkingCursorEnabled(bool enable);
+    void updateCursorFlashTime();
 
     void extendWordwiseSelection(int suggestedNewPosition, qreal mouseXPosition);
     void extendBlockwiseSelection(int suggestedNewPosition);
@@ -156,6 +157,7 @@ public:
     bool overwriteMode : 1;
     bool acceptRichText : 1;
     bool cursorVisible : 1; // used to hide the cursor in the preedit area
+    bool cursorBlinkingEnabled : 1;
     bool hasFocus : 1;
     bool hadSelectionOnMousePress : 1;
     bool wordSelectionEnabled : 1;
diff --git a/src/quick/items/qquicktextedit.cpp b/src/quick/items/qquicktextedit.cpp
index 8bb788d008..36eb5d3cde 100644
--- a/src/quick/items/qquicktextedit.cpp
+++ b/src/quick/items/qquicktextedit.cpp
@@ -1901,6 +1901,9 @@ QVariant QQuickTextEdit::inputMethodQuery(Qt::InputMethodQuery property, QVarian
     case Qt::ImHints:
         v = (int)d->effectiveInputMethodHints();
         break;
+    case Qt::ImInputItemClipRectangle:
+        v = QQuickItem::inputMethodQuery(property);
+        break;
     default:
         if (property == Qt::ImCursorPosition && !argument.isNull())
             argument = QVariant(argument.toPointF() - QPointF(d->xoff, d->yoff));
diff --git a/src/quick/items/qquicktextinput.cpp b/src/quick/items/qquicktextinput.cpp
index f361d46424..9b7eb4ea4b 100644
--- a/src/quick/items/qquicktextinput.cpp
+++ b/src/quick/items/qquicktextinput.cpp
@@ -792,12 +792,8 @@ void QQuickTextInput::setCursorVisible(bool on)
     d->cursorVisible = on;
     if (on && isComponentComplete())
         QQuickTextUtil::createCursor(d);
-    if (!d->cursorItem) {
-        d->setCursorBlinkPeriod(on ? QGuiApplication::styleHints()->cursorFlashTime() : 0);
-        d->updateType = QQuickTextInputPrivate::UpdatePaintNode;
-        polish();
-        update();
-    }
+    if (!d->cursorItem)
+        d->updateCursorBlinking();
     emit cursorVisibleChanged(d->cursorVisible);
 }
 
@@ -1858,7 +1854,7 @@ QSGNode *QQuickTextInput::updatePaintNode(QSGNode *oldNode, UpdatePaintNodeData
         node = new QQuickTextNode(this);
     d->textNode = node;
 
-    const bool showCursor = !isReadOnly() && d->cursorItem == 0 && d->cursorVisible && (d->m_blinkStatus || d->m_blinkPeriod == 0);
+    const bool showCursor = !isReadOnly() && d->cursorItem == 0 && d->cursorVisible && d->m_blinkStatus;
 
     if (!d->textLayoutDirty && oldNode != 0) {
         if (showCursor)
@@ -1954,7 +1950,7 @@ QVariant QQuickTextInput::inputMethodQuery(Qt::InputMethodQuery property, QVaria
         return QVariant(d->m_text.mid(d->m_cursor));
     case Qt::ImTextBeforeCursor:
         if (argument.isValid())
-            return QVariant(d->m_text.left(d->m_cursor).right(argument.toInt()));
+            return QVariant(d->m_text.leftRef(d->m_cursor).right(argument.toInt()).toString());
         return QVariant(d->m_text.left(d->m_cursor));
     default:
         return QQuickItem::inputMethodQuery(property);
@@ -2594,8 +2590,10 @@ void QQuickTextInputPrivate::handleFocusEvent(QFocusEvent *event)
 {
     Q_Q(QQuickTextInput);
     bool focus = event->gotFocus();
-    if (!m_readOnly)
+    if (!m_readOnly) {
         q->setCursorVisible(focus);
+        setBlinkingCursorEnabled(focus);
+    }
     if (focus) {
         q->q_updateAlignment();
 #ifndef QT_NO_IM
@@ -4295,26 +4293,39 @@ bool QQuickTextInputPrivate::emitCursorPositionChanged()
 }
 
 
-void QQuickTextInputPrivate::setCursorBlinkPeriod(int msec)
+void QQuickTextInputPrivate::setBlinkingCursorEnabled(bool enable)
 {
-    Q_Q(QQuickTextInput);
-    if (msec == m_blinkPeriod)
+    if (enable == m_blinkEnabled)
         return;
+
+    m_blinkEnabled = enable;
+    updateCursorBlinking();
+
+    if (enable)
+        connect(qApp->styleHints(), &QStyleHints::cursorFlashTimeChanged, this, &QQuickTextInputPrivate::updateCursorBlinking);
+    else
+        disconnect(qApp->styleHints(), &QStyleHints::cursorFlashTimeChanged, this, &QQuickTextInputPrivate::updateCursorBlinking);
+}
+
+void QQuickTextInputPrivate::updateCursorBlinking()
+{
+    Q_Q(QQuickTextInput);
+
     if (m_blinkTimer) {
         q->killTimer(m_blinkTimer);
-    }
-    if (msec) {
-        m_blinkTimer = q->startTimer(msec / 2);
-        m_blinkStatus = 1;
-    } else {
         m_blinkTimer = 0;
-        if (m_blinkStatus == 1) {
-            updateType = UpdatePaintNode;
-            q->polish();
-            q->update();
-        }
     }
-    m_blinkPeriod = msec;
+
+    if (m_blinkEnabled && cursorVisible && !cursorItem && !m_readOnly) {
+        int flashTime = QGuiApplication::styleHints()->cursorFlashTime();
+        if (flashTime >= 2)
+            m_blinkTimer = q->startTimer(flashTime / 2);
+    }
+
+    m_blinkStatus = 1;
+    updateType = UpdatePaintNode;
+    q->polish();
+    q->update();
 }
 
 void QQuickTextInput::timerEvent(QTimerEvent *event)
@@ -4351,20 +4362,8 @@ void QQuickTextInputPrivate::processKeyEvent(QKeyEvent* event)
         return;
     }
 
-    if (m_blinkPeriod > 0) {
-        if (m_blinkTimer)
-            q->killTimer(m_blinkTimer);
-
-        m_blinkTimer = q->startTimer(m_blinkPeriod / 2);
-
-        if (m_blinkStatus == 0) {
-            m_blinkStatus = 1;
-
-            updateType = UpdatePaintNode;
-            q->polish();
-            q->update();
-        }
-    }
+    if (m_blinkEnabled)
+        updateCursorBlinking();
 
     if (m_echoMode == QQuickTextInput::PasswordEchoOnEdit
         && !m_passwordEchoEditing
diff --git a/src/quick/items/qquicktextinput_p.h b/src/quick/items/qquicktextinput_p.h
index d2dee2c284..d0461f551e 100644
--- a/src/quick/items/qquicktextinput_p.h
+++ b/src/quick/items/qquicktextinput_p.h
@@ -323,8 +323,8 @@ Q_SIGNALS:
     void selectionColorChanged();
     void selectedTextColorChanged();
     void fontChanged(const QFont &font);
-    void horizontalAlignmentChanged(HAlignment alignment);
-    void verticalAlignmentChanged(VAlignment alignment);
+    void horizontalAlignmentChanged(QQuickTextInput::HAlignment alignment);
+    void verticalAlignmentChanged(QQuickTextInput::VAlignment alignment);
     void wrapModeChanged();
     void readOnlyChanged(bool isReadOnly);
     void cursorVisibleChanged(bool isCursorVisible);
@@ -333,7 +333,7 @@ Q_SIGNALS:
     void maximumLengthChanged(int maximumLength);
     void validatorChanged();
     void inputMaskChanged(const QString &inputMask);
-    void echoModeChanged(EchoMode echoMode);
+    void echoModeChanged(QQuickTextInput::EchoMode echoMode);
     void passwordCharacterChanged();
     Q_REVISION(3) void passwordMaskDelayChanged(int delay);
     void displayTextChanged();
@@ -341,7 +341,7 @@ Q_SIGNALS:
     void activeFocusOnPressChanged(bool activeFocusOnPress);
     void autoScrollChanged(bool autoScroll);
     void selectByMouseChanged(bool selectByMouse);
-    void mouseSelectionModeChanged(SelectionMode mode);
+    void mouseSelectionModeChanged(QQuickTextInput::SelectionMode mode);
     void persistentSelectionChanged();
     void canPasteChanged();
     void canUndoChanged();
diff --git a/src/quick/items/qquicktextinput_p_p.h b/src/quick/items/qquicktextinput_p_p.h
index e6bd29bf67..93a8778c40 100644
--- a/src/quick/items/qquicktextinput_p_p.h
+++ b/src/quick/items/qquicktextinput_p_p.h
@@ -107,7 +107,7 @@ public:
 #ifndef QT_NO_IM
         , m_preeditCursor(0)
 #endif
-        , m_blinkPeriod(0)
+        , m_blinkEnabled(false)
         , m_blinkTimer(0)
         , m_maxLength(32767)
         , m_lastCursorPos(-1)
@@ -243,7 +243,7 @@ public:
 #ifndef QT_NO_IM
     int m_preeditCursor;
 #endif
-    int m_blinkPeriod; // 0 for non-blinking cursor
+    bool m_blinkEnabled;
     int m_blinkTimer;
     int m_maxLength;
     int m_lastCursorPos;
@@ -309,8 +309,9 @@ public:
         return !tripleClickTimer.hasExpired(QGuiApplication::styleHints()->mouseDoubleClickInterval());
     }
 
-    void setNativeCursorEnabled(bool enabled) {
-        setCursorBlinkPeriod(enabled && cursorVisible ? QGuiApplication::styleHints()->cursorFlashTime() : 0); }
+    void setNativeCursorEnabled(bool) {
+        updateCursorBlinking();
+    }
 
     int nextMaskBlank(int pos)
     {
@@ -445,7 +446,8 @@ public:
 #endif
     void processKeyEvent(QKeyEvent* ev);
 
-    void setCursorBlinkPeriod(int msec);
+    void setBlinkingCursorEnabled(bool enable);
+    void updateCursorBlinking();
 
     void updateLayout();
     void updateBaselineOffset();
diff --git a/src/quick/items/qquickwindow.cpp b/src/quick/items/qquickwindow.cpp
index f38b3e7693..cdde780932 100644
--- a/src/quick/items/qquickwindow.cpp
+++ b/src/quick/items/qquickwindow.cpp
@@ -102,6 +102,7 @@ void QQuickWindowPrivate::updateFocusItemTransform()
         QQuickItemPrivate *focusPrivate = QQuickItemPrivate::get(focus);
         QGuiApplication::inputMethod()->setInputItemTransform(focusPrivate->itemToWindowTransform());
         QGuiApplication::inputMethod()->setInputItemRectangle(QRectF(0, 0, focusPrivate->width, focusPrivate->height));
+        focus->updateInputMethod(Qt::ImInputItemClipRectangle);
     }
 #endif
 }
@@ -260,6 +261,26 @@ void QQuickWindow::focusInEvent(QFocusEvent *ev)
     d->updateFocusItemTransform();
 }
 
+#ifndef QT_NO_IM
+static bool transformDirtyOnItemOrAncestor(const QQuickItem *item)
+{
+    while (item) {
+        if (QQuickItemPrivate::get(item)->dirtyAttributes & (
+            QQuickItemPrivate::TransformOrigin |
+            QQuickItemPrivate::Transform |
+            QQuickItemPrivate::BasicTransform |
+            QQuickItemPrivate::Position |
+            QQuickItemPrivate::Size |
+            QQuickItemPrivate::ParentChanged |
+            QQuickItemPrivate::Clip)) {
+            return true;
+        }
+        item = item->parentItem();
+    }
+    return false;
+}
+#endif
+
 void QQuickWindowPrivate::polishItems()
 {
     // An item can trigger polish on another item, or itself for that matter,
@@ -279,7 +300,17 @@ void QQuickWindowPrivate::polishItems()
     if (recursionSafeguard == 0)
         qWarning("QQuickWindow: possible QQuickItem::polish() loop");
 
-    updateFocusItemTransform();
+#ifndef QT_NO_IM
+    if (QQuickItem *focusItem = q_func()->activeFocusItem()) {
+        // If the current focus item, or any of its anchestors, has changed location
+        // inside the window, we need inform IM about it. This to ensure that overlays
+        // such as selection handles will be updated.
+        const bool isActiveFocusItem = (focusItem == QGuiApplication::focusObject());
+        const bool hasImEnabled = focusItem->inputMethodQuery(Qt::ImEnabled).toBool();
+        if (isActiveFocusItem && hasImEnabled && transformDirtyOnItemOrAncestor(focusItem))
+            updateFocusItemTransform();
+    }
+#endif
 }
 
 /*!
@@ -4083,6 +4114,12 @@ void QQuickWindow::resetOpenGLState()
 */
 
 /*!
+    \qmlproperty Item Window::contentItem
+    \readonly
+    \brief The invisible root item of the scene.
+*/
+
+/*!
     \qmlproperty Qt::ScreenOrientation Window::contentOrientation
 
     This is a hint to the window manager in case it needs to display
diff --git a/src/quick/scenegraph/coreapi/qsgbatchrenderer.cpp b/src/quick/scenegraph/coreapi/qsgbatchrenderer.cpp
index f277475dbf..5af79747a7 100644
--- a/src/quick/scenegraph/coreapi/qsgbatchrenderer.cpp
+++ b/src/quick/scenegraph/coreapi/qsgbatchrenderer.cpp
@@ -496,11 +496,6 @@ void Updater::visitGeometryNode(Node *n)
             if (e->batch)
                 renderer->invalidateBatchAndOverlappingRenderOrders(e->batch);
         }
-        if (n->dirtyState & QSGNode::DirtyMaterial) {
-            Element *e = n->element();
-            if (e->batch && e->batch->isMaterialCompatible(e) == BatchBreaksOnCompare)
-                renderer->invalidateBatchAndOverlappingRenderOrders(e->batch);
-        }
     }
 
     SHADOWNODE_TRAVERSE(n) visitNode(child);
@@ -598,13 +593,13 @@ void Element::computeBounds()
     }
     bounds.map(*node->matrix());
 
-    if (!qIsFinite(bounds.tl.x) || bounds.tl.x == FLT_MAX)
+    if (!qt_is_finite(bounds.tl.x) || bounds.tl.x == FLT_MAX)
         bounds.tl.x = -FLT_MAX;
-    if (!qIsFinite(bounds.tl.y) || bounds.tl.y == FLT_MAX)
+    if (!qt_is_finite(bounds.tl.y) || bounds.tl.y == FLT_MAX)
         bounds.tl.y = -FLT_MAX;
-    if (!qIsFinite(bounds.br.x) || bounds.br.x == -FLT_MAX)
+    if (!qt_is_finite(bounds.br.x) || bounds.br.x == -FLT_MAX)
         bounds.br.x = FLT_MAX;
-    if (!qIsFinite(bounds.br.y) || bounds.br.y == -FLT_MAX)
+    if (!qt_is_finite(bounds.br.y) || bounds.br.y == -FLT_MAX)
         bounds.br.y = FLT_MAX;
 
     Q_ASSERT(bounds.tl.x <= bounds.br.x);
@@ -1241,7 +1236,10 @@ void Renderer::nodeChanged(QSGNode *node, QSGNode::DirtyState state)
             if (e->isMaterialBlended != blended) {
                 m_rebuild |= Renderer::FullRebuild;
                 e->isMaterialBlended = blended;
-            } else if (!e->batch) {
+            } else if (e->batch) {
+                if (e->batch->isMaterialCompatible(e) == BatchBreaksOnCompare)
+                    invalidateBatchAndOverlappingRenderOrders(e->batch);
+            } else {
                 m_rebuild |= Renderer::BuildBatches;
             }
         }
diff --git a/src/quick/scenegraph/coreapi/qsgbatchrenderer_p.h b/src/quick/scenegraph/coreapi/qsgbatchrenderer_p.h
index c56f15d655..01e517e65b 100644
--- a/src/quick/scenegraph/coreapi/qsgbatchrenderer_p.h
+++ b/src/quick/scenegraph/coreapi/qsgbatchrenderer_p.h
@@ -529,7 +529,7 @@ public:
         float lastOpacity;
     };
 
-    ShaderManager(QSGDefaultRenderContext *ctx) : blitProgram(0), visualizeProgram(0), context(ctx) { }
+    ShaderManager(QSGDefaultRenderContext *ctx) : visualizeProgram(0), blitProgram(0), context(ctx) { }
     ~ShaderManager() {
         qDeleteAll(rewrittenShaders);
         qDeleteAll(stockShaders);
@@ -542,11 +542,13 @@ public:
     Shader *prepareMaterial(QSGMaterial *material);
     Shader *prepareMaterialNoRewrite(QSGMaterial *material);
 
+    QOpenGLShaderProgram *visualizeProgram;
+
+private:
     QHash<QSGMaterialType *, Shader *> rewrittenShaders;
     QHash<QSGMaterialType *, Shader *> stockShaders;
 
     QOpenGLShaderProgram *blitProgram;
-    QOpenGLShaderProgram *visualizeProgram;
     QSGDefaultRenderContext *context;
 };
 
diff --git a/src/quick/scenegraph/util/qsgatlastexture.cpp b/src/quick/scenegraph/util/qsgatlastexture.cpp
index 06c4129a33..098a4a666b 100644
--- a/src/quick/scenegraph/util/qsgatlastexture.cpp
+++ b/src/quick/scenegraph/util/qsgatlastexture.cpp
@@ -128,6 +128,7 @@ Atlas::Atlas(const QSize &size)
     : m_allocator(size)
     , m_texture_id(0)
     , m_size(size)
+    , m_atlas_transient_image_threshold(0)
     , m_allocated(false)
 {
 
@@ -177,6 +178,11 @@ Atlas::Atlas(const QSize &size)
 
     m_use_bgra_fallback = qEnvironmentVariableIsSet("QSG_ATLAS_USE_BGRA_FALLBACK");
     m_debug_overlay = qEnvironmentVariableIsSet("QSG_ATLAS_OVERLAY");
+
+    // images smaller than this will retain their QImage.
+    // by default no images are retained (favoring memory)
+    // set to a very large value to retain all images (allowing quick removal from the atlas)
+    m_atlas_transient_image_threshold = qt_sg_envInt("QSG_ATLAS_TRANSIENT_IMAGE_THRESHOLD", 0);
 }
 
 Atlas::~Atlas()
@@ -399,7 +405,10 @@ void Atlas::bind(QSGTexture::Filtering filtering)
         } else {
             upload(t);
         }
-        t->releaseImage();
+        const QSize textureSize = t->textureSize();
+        if (textureSize.width() > m_atlas_transient_image_threshold ||
+                textureSize.height() > m_atlas_transient_image_threshold)
+            t->releaseImage();
 
         qCDebug(QSG_LOG_TIME_TEXTURE).nospace() << "atlastexture uploaded in: " << qsg_renderer_timer.elapsed()
                                            << "ms (" << t->textureSize().width() << "x"
diff --git a/src/quick/scenegraph/util/qsgatlastexture_p.h b/src/quick/scenegraph/util/qsgatlastexture_p.h
index da5acb3fea..cd24645fcf 100644
--- a/src/quick/scenegraph/util/qsgatlastexture_p.h
+++ b/src/quick/scenegraph/util/qsgatlastexture_p.h
@@ -116,6 +116,8 @@ private:
     uint m_internalFormat;
     uint m_externalFormat;
 
+    int m_atlas_transient_image_threshold;
+
     uint m_allocated : 1;
     uint m_use_bgra_fallback: 1;
 
diff --git a/src/quick/scenegraph/util/qsgshadersourcebuilder.cpp b/src/quick/scenegraph/util/qsgshadersourcebuilder.cpp
index ec1d316f78..caa296451e 100644
--- a/src/quick/scenegraph/util/qsgshadersourcebuilder.cpp
+++ b/src/quick/scenegraph/util/qsgshadersourcebuilder.cpp
@@ -382,9 +382,9 @@ QString QSGShaderSourceBuilder::resolveShaderPath(const QString &path) const
         int idx = path.lastIndexOf(QLatin1Char('.'));
         QString resolvedPath;
         if (idx != -1)
-            resolvedPath = path.left(idx)
-                         + QStringLiteral("_core")
-                         + path.right(path.length() - idx);
+            resolvedPath = path.leftRef(idx)
+                         + QLatin1String("_core")
+                         + path.rightRef(path.length() - idx);
         return resolvedPath;
     }
 }
diff --git a/src/quick/util/qquickanimation.cpp b/src/quick/util/qquickanimation.cpp
index adf8f600a0..741a583803 100644
--- a/src/quick/util/qquickanimation.cpp
+++ b/src/quick/util/qquickanimation.cpp
@@ -986,7 +986,7 @@ void QQuickScriptActionPrivate::debugAction(QDebug d, int indentLevel) const
         QByteArray ind(indentLevel, ' ');
         QString exprStr = expr.expression();
         int endOfFirstLine = exprStr.indexOf('\n');
-        d << "\n" << ind.constData() << exprStr.left(endOfFirstLine);
+        d << "\n" << ind.constData() << exprStr.leftRef(endOfFirstLine);
         if (endOfFirstLine != -1 && endOfFirstLine < exprStr.length())
             d << "...";
     }
diff --git a/src/quick/util/qquickglobal.cpp b/src/quick/util/qquickglobal.cpp
index 4ad6fdd854..7692cc79f9 100644
--- a/src/quick/util/qquickglobal.cpp
+++ b/src/quick/util/qquickglobal.cpp
@@ -172,8 +172,8 @@ public:
             int index = s.indexOf(QLatin1Char(','));
 
             bool xGood, yGood;
-            float xCoord = s.left(index).toFloat(&xGood);
-            float yCoord = s.mid(index+1).toFloat(&yGood);
+            float xCoord = s.leftRef(index).toFloat(&xGood);
+            float yCoord = s.midRef(index + 1).toFloat(&yGood);
 
             if (xGood && yGood) {
                 if (ok) *ok = true;
@@ -192,9 +192,9 @@ public:
             int index2 = s.indexOf(QLatin1Char(','), index+1);
 
             bool xGood, yGood, zGood;
-            float xCoord = s.left(index).toFloat(&xGood);
-            float yCoord = s.mid(index+1, index2-index-1).toFloat(&yGood);
-            float zCoord = s.mid(index2+1).toFloat(&zGood);
+            float xCoord = s.leftRef(index).toFloat(&xGood);
+            float yCoord = s.midRef(index + 1, index2 - index - 1).toFloat(&yGood);
+            float zCoord = s.midRef(index2 + 1).toFloat(&zGood);
 
             if (xGood && yGood && zGood) {
                 if (ok) *ok = true;
@@ -214,10 +214,10 @@ public:
             int index3 = s.indexOf(QLatin1Char(','), index2+1);
 
             bool xGood, yGood, zGood, wGood;
-            float xCoord = s.left(index).toFloat(&xGood);
-            float yCoord = s.mid(index+1, index2-index-1).toFloat(&yGood);
-            float zCoord = s.mid(index2+1, index3-index2-1).toFloat(&zGood);
-            float wCoord = s.mid(index3+1).toFloat(&wGood);
+            float xCoord = s.leftRef(index).toFloat(&xGood);
+            float yCoord = s.midRef(index + 1, index2 - index - 1).toFloat(&yGood);
+            float zCoord = s.midRef(index2 + 1, index3 - index2 - 1).toFloat(&zGood);
+            float wCoord = s.midRef(index3 + 1).toFloat(&wGood);
 
             if (xGood && yGood && zGood && wGood) {
                 if (ok) *ok = true;
@@ -257,10 +257,10 @@ public:
         if (s.count(QLatin1Char(',')) == 15) {
             float matValues[16];
             bool vOK = true;
-            QString mutableStr = s;
+            QStringRef mutableStr(&s);
             for (int i = 0; vOK && i < 16; ++i) {
                 int cidx = mutableStr.indexOf(QLatin1Char(','));
-                matValues[i] = mutableStr.leftRef(cidx).toDouble(&vOK);
+                matValues[i] = mutableStr.left(cidx).toDouble(&vOK);
                 mutableStr = mutableStr.mid(cidx + 1);
             }
 
diff --git a/src/quick/util/qquickpath_p.h b/src/quick/util/qquickpath_p.h
index d554e2156a..e2c99de44e 100644
--- a/src/quick/util/qquickpath_p.h
+++ b/src/quick/util/qquickpath_p.h
@@ -335,7 +335,7 @@ class Q_AUTOTEST_EXPORT QQuickPathPercent : public QQuickPathElement
     Q_OBJECT
     Q_PROPERTY(qreal value READ value WRITE setValue NOTIFY valueChanged)
 public:
-    QQuickPathPercent(QObject *parent=0) : QQuickPathElement(parent) {}
+    QQuickPathPercent(QObject *parent=0) : QQuickPathElement(parent), _value(0) {}
 
     qreal value() const;
     void setValue(qreal value);
diff --git a/src/quick/util/qquickpixmapcache.cpp b/src/quick/util/qquickpixmapcache.cpp
index 2b6e8f68c3..597613c9fd 100644
--- a/src/quick/util/qquickpixmapcache.cpp
+++ b/src/quick/util/qquickpixmapcache.cpp
@@ -455,13 +455,19 @@ QQuickPixmapReader::~QQuickPixmapReader()
     }
     jobs.clear();
 #ifndef QT_NO_NETWORK
-    QList<QQuickPixmapReply*> activeJobs = networkJobs.values() + asyncResponses.values();
-    foreach (QQuickPixmapReply *reply, activeJobs ) {
+
+    const auto cancelJob = [this](QQuickPixmapReply *reply) {
         if (reply->loading) {
             cancelled.append(reply);
             reply->data = 0;
         }
-    }
+    };
+
+    for (auto *reply : qAsConst(networkJobs))
+        cancelJob(reply);
+
+    for (auto *reply : qAsConst(asyncResponses))
+        cancelJob(reply);
 #endif
     if (threadObject) threadObject->processJobs();
     mutex.unlock();
diff --git a/src/quick/util/qquicksmoothedanimation.cpp b/src/quick/util/qquicksmoothedanimation.cpp
index b7eadf5e30..d4956983fb 100644
--- a/src/quick/util/qquicksmoothedanimation.cpp
+++ b/src/quick/util/qquicksmoothedanimation.cpp
@@ -377,9 +377,8 @@ QQuickSmoothedAnimation::~QQuickSmoothedAnimation()
 }
 
 QQuickSmoothedAnimationPrivate::QQuickSmoothedAnimationPrivate()
-    : anim(0)
+    : anim(new QSmoothedAnimation)
 {
-    anim = new QSmoothedAnimation;
 }
 
 QQuickSmoothedAnimationPrivate::~QQuickSmoothedAnimationPrivate()
diff --git a/src/quick/util/qquickstategroup.cpp b/src/quick/util/qquickstategroup.cpp
index 791e38e45d..200f243a1b 100644
--- a/src/quick/util/qquickstategroup.cpp
+++ b/src/quick/util/qquickstategroup.cpp
@@ -44,9 +44,9 @@
 #include <private/qqmlbinding_p.h>
 #include <private/qqmlglobal_p.h>
 
-#include <QtCore/qstringbuilder.h>
 #include <QtCore/qstringlist.h>
 #include <QtCore/qdebug.h>
+#include <QtCore/qvector.h>
 
 #include <private/qobject_p.h>
 #include <qqmlinfo.h>
@@ -305,7 +305,7 @@ void QQuickStateGroup::componentComplete()
     for (int ii = 0; ii < d->states.count(); ++ii) {
         QQuickState *state = d->states.at(ii);
         if (!state->isNamed())
-            state->setName(QLatin1String("anonymousState") % QString::number(++d->unnamedCount));
+            state->setName(QLatin1String("anonymousState") + QString::number(++d->unnamedCount));
     }
 
     if (d->updateAutoState()) {
@@ -379,28 +379,29 @@ QQuickTransition *QQuickStateGroupPrivate::findTransition(const QString &from, c
                       (t->fromState() == QLatin1String("*") &&
                        t->toState() == QLatin1String("*"))))
                 break;
-            QStringList fromState;
-            QStringList toState;
+            const QString fromStateStr = t->fromState();
+            const QString toStateStr = t->toState();
 
-            fromState = t->fromState().split(QLatin1Char(','));
+            QVector<QStringRef> fromState = fromStateStr.splitRef(QLatin1Char(','));
             for (int jj = 0; jj < fromState.count(); ++jj)
                 fromState[jj] = fromState.at(jj).trimmed();
-            toState = t->toState().split(QLatin1Char(','));
+            QVector<QStringRef> toState = toStateStr.splitRef(QLatin1Char(','));
             for (int jj = 0; jj < toState.count(); ++jj)
                 toState[jj] = toState.at(jj).trimmed();
             if (ii == 1)
                 qSwap(fromState, toState);
             int tScore = 0;
-            if (fromState.contains(from))
+            const QString asterisk = QStringLiteral("*");
+            if (fromState.contains(QStringRef(&from)))
                 tScore += 2;
-            else if (fromState.contains(QLatin1String("*")))
+            else if (fromState.contains(QStringRef(&asterisk)))
                 tScore += 1;
             else
                 continue;
 
-            if (toState.contains(to))
+            if (toState.contains(QStringRef(&to)))
                 tScore += 2;
-            else if (toState.contains(QLatin1String("*")))
+            else if (toState.contains(QStringRef(&asterisk)))
                 tScore += 1;
             else
                 continue;