Merge branch '4.7' of scm.dev.nokia.troll.no:qt/oslo-staging-2 into 4.7-integration

* '4.7' of scm.dev.nokia.troll.no:qt/oslo-staging-2:
  Fix project file generation for MSVC 2010
  Fix wrong translation and clip for the raster paint-engine on Mac
  Return the correct library name in qt_gl_library_name for GLES*
  qmake: remove useless evaluation of variables from VS project generators
  Fix QT_NO_LIBRARY
  Documentation for the Elastic Nodes example.
  qmake: fix duplicate linker options in VS project files
  Ensured that WA_InputMethodEnabled was set before FocusInEvent was sent.
  qmake: fix duplicate compiler options in VS project files
  Documentation for the Drag and Drop Robot example.
  Fix crash in styles example when running with opengl graphicssystem
  Fixed the sizehint for cols/rows in qtableview
  QUrl: parsing of host name with an undercore.
  Null pointer check
  Revert "Try to use multisampled opengl graphicssystem on all platforms"
  A small mistake when comparing the flag.
  Add unit tests covering most of QVector's API.
  Fix crash when CoreText fails to shape text for us
  Fix crash when using opengl graphicssystem on desktop
  Revert "Revert "Implement heightForWidth support for QTabWidget and QStackedLayout.""

22 files changed, 154 insertions, 57 deletions

diff --git a/src/gui/accessible/qaccessible.cpp b/src/gui/accessible/qaccessible.cpp
index a55a061..0921bdb 100644
--- a/src/gui/accessible/qaccessible.cpp
+++ b/src/gui/accessible/qaccessible.cpp
@@ -389,7 +389,7 @@ QT_BEGIN_NAMESPACE
     \internal
 */
 
-#if !defined(QT_NO_LIBRARY) && (!defined(QT_NO_SETTINGS) || !defined(Q_OS_WIN))
+#ifndef QT_NO_LIBRARY
 Q_GLOBAL_STATIC_WITH_ARGS(QFactoryLoader, loader,
     (QAccessibleFactoryInterface_iid, QLatin1String("/accessible")))
 #endif
@@ -532,7 +532,7 @@ QAccessibleInterface *QAccessible::queryAccessibleInterface(QObject *object)
             if (iface)
                 return iface;
         }
-#if !defined(QT_NO_LIBRARY) && (!defined(QT_NO_SETTINGS) || !defined(Q_OS_WIN))
+#ifndef QT_NO_LIBRARY
         QAccessibleFactoryInterface *factory = qobject_cast<QAccessibleFactoryInterface*>(loader()->instance(cn));
         if (factory) {
             iface = factory->create(cn, object);
diff --git a/src/gui/graphicsview/qgraphicsscene.cpp b/src/gui/graphicsview/qgraphicsscene.cpp
index bd0f0d8..8cee021 100644
--- a/src/gui/graphicsview/qgraphicsscene.cpp
+++ b/src/gui/graphicsview/qgraphicsscene.cpp
@@ -820,13 +820,13 @@ void QGraphicsScenePrivate::setFocusItemHelper(QGraphicsItem *item,
 #endif //QT_NO_IM
     }
 
-    if (item) {
+    if (item)
         focusItem = item;
+    updateInputMethodSensitivityInViews();
+    if (item) {
         QFocusEvent event(QEvent::FocusIn, focusReason);
         sendEvent(item, &event);
     }
-
-    updateInputMethodSensitivityInViews();
 }
 
 /*!
diff --git a/src/gui/image/qicon.cpp b/src/gui/image/qicon.cpp
index bc52e99..891b1db 100644
--- a/src/gui/image/qicon.cpp
+++ b/src/gui/image/qicon.cpp
@@ -441,7 +441,7 @@ void QPixmapIconEngine::virtual_hook(int id, void *data)
     }
 }
 
-#if !defined (QT_NO_LIBRARY) && !defined(QT_NO_SETTINGS)
+#ifndef QT_NO_LIBRARY
 Q_GLOBAL_STATIC_WITH_ARGS(QFactoryLoader, loader,
     (QIconEngineFactoryInterface_iid, QLatin1String("/iconengines"), Qt::CaseInsensitive))
 Q_GLOBAL_STATIC_WITH_ARGS(QFactoryLoader, loaderV2,
diff --git a/src/gui/image/qimagereader.cpp b/src/gui/image/qimagereader.cpp
index 27f9627..93d5cd3 100644
--- a/src/gui/image/qimagereader.cpp
+++ b/src/gui/image/qimagereader.cpp
@@ -144,7 +144,7 @@
 
 QT_BEGIN_NAMESPACE
 
-#if !defined (QT_NO_LIBRARY) && !defined(QT_NO_SETTINGS)
+#ifndef QT_NO_LIBRARY
 Q_GLOBAL_STATIC_WITH_ARGS(QFactoryLoader, loader,
                           (QImageIOHandlerFactoryInterface_iid, QLatin1String("/imageformats")))
 #endif
@@ -205,7 +205,7 @@ static QImageIOHandler *createReadHandlerHelper(QIODevice *device,
     QByteArray form = format.toLower();
     QImageIOHandler *handler = 0;
 
-#if !defined (QT_NO_LIBRARY) && !defined(QT_NO_SETTINGS)
+#ifndef QT_NO_LIBRARY
     // check if we have plugins that support the image format
     QFactoryLoader *l = loader();
     QStringList keys = l->keys();
@@ -217,7 +217,7 @@ static QImageIOHandler *createReadHandlerHelper(QIODevice *device,
              << keys.size() << "plugins available: " << keys;
 #endif
 
-#if !defined (QT_NO_LIBRARY) && !defined(QT_NO_SETTINGS)
+#ifndef QT_NO_LIBRARY
     int suffixPluginIndex = -1;
     if (device && format.isEmpty() && autoDetectImageFormat && !ignoresFormatAndExtension) {
         // if there's no format, see if \a device is a file, and if so, find
@@ -246,7 +246,7 @@ static QImageIOHandler *createReadHandlerHelper(QIODevice *device,
     if (ignoresFormatAndExtension)
         testFormat = QByteArray();
 
-#if !defined (QT_NO_LIBRARY) && !defined(QT_NO_SETTINGS)
+#ifndef QT_NO_LIBRARY
     if (suffixPluginIndex != -1) {
         // check if the plugin that claims support for this format can load
         // from this device with this format.
@@ -331,7 +331,7 @@ static QImageIOHandler *createReadHandlerHelper(QIODevice *device,
 #endif
     }
 
-#if !defined (QT_NO_LIBRARY) && !defined(QT_NO_SETTINGS)
+#ifndef QT_NO_LIBRARY
     if (!handler && (autoDetectImageFormat || ignoresFormatAndExtension)) {
         // check if any of our plugins recognize the file from its contents.
         const qint64 pos = device ? device->pos() : 0;
@@ -350,7 +350,7 @@ static QImageIOHandler *createReadHandlerHelper(QIODevice *device,
         if (device && !device->isSequential())
             device->seek(pos);
     }
-#endif
+#endif // QT_NO_LIBRARY
 
     if (!handler && (autoDetectImageFormat || ignoresFormatAndExtension)) {
         // check if any of our built-in handlers recognize the file from its
@@ -1414,7 +1414,7 @@ QList<QByteArray> QImageReader::supportedImageFormats()
     for (int i = 0; i < _qt_NumFormats; ++i)
         formats << _qt_BuiltInFormats[i].extension;
 
-#if !defined (QT_NO_LIBRARY) && !defined(QT_NO_SETTINGS)
+#ifndef QT_NO_LIBRARY
     QFactoryLoader *l = loader();
     QStringList keys = l->keys();
 
diff --git a/src/gui/image/qimagewriter.cpp b/src/gui/image/qimagewriter.cpp
index 503a1b2..552729f 100644
--- a/src/gui/image/qimagewriter.cpp
+++ b/src/gui/image/qimagewriter.cpp
@@ -117,7 +117,7 @@
 
 QT_BEGIN_NAMESPACE
 
-#if !defined (QT_NO_LIBRARY) && !defined(QT_NO_SETTINGS)
+#ifndef QT_NO_LIBRARY
 Q_GLOBAL_STATIC_WITH_ARGS(QFactoryLoader, loader,
                           (QImageIOHandlerFactoryInterface_iid, QLatin1String("/imageformats")))
 #endif
@@ -129,7 +129,7 @@ static QImageIOHandler *createWriteHandlerHelper(QIODevice *device,
     QByteArray suffix;
     QImageIOHandler *handler = 0;
 
-#if !defined (QT_NO_LIBRARY) && !defined(QT_NO_SETTINGS)
+#ifndef QT_NO_LIBRARY
     // check if any plugins can write the image
     QFactoryLoader *l = loader();
     QStringList keys = l->keys();
@@ -142,7 +142,7 @@ static QImageIOHandler *createWriteHandlerHelper(QIODevice *device,
         // this allows plugins to override our built-in handlers.
         if (QFile *file = qobject_cast<QFile *>(device)) {
             if (!(suffix = QFileInfo(file->fileName()).suffix().toLower().toLatin1()).isEmpty()) {
-#if !defined (QT_NO_LIBRARY) && !defined(QT_NO_SETTINGS)
+#ifndef QT_NO_LIBRARY
                 int index = keys.indexOf(QString::fromLatin1(suffix));
                 if (index != -1)
                     suffixPluginIndex = index;
@@ -153,7 +153,7 @@ static QImageIOHandler *createWriteHandlerHelper(QIODevice *device,
 
     QByteArray testFormat = !form.isEmpty() ? form : suffix;
 
-#if !defined (QT_NO_LIBRARY) && !defined(QT_NO_SETTINGS)
+#ifndef QT_NO_LIBRARY
     if (suffixPluginIndex != -1) {
         // when format is missing, check if we can find a plugin for the
         // suffix.
@@ -161,7 +161,7 @@ static QImageIOHandler *createWriteHandlerHelper(QIODevice *device,
         if (plugin && (plugin->capabilities(device, suffix) & QImageIOPlugin::CanWrite))
             handler = plugin->create(device, suffix);
     }
-#endif // Q_NO_LIBRARY
+#endif // QT_NO_LIBRARY
 
     // check if any built-in handlers can write the image
     if (!handler && !testFormat.isEmpty()) {
@@ -192,7 +192,7 @@ static QImageIOHandler *createWriteHandlerHelper(QIODevice *device,
         }
     }
 
-#if !defined (QT_NO_LIBRARY) && !defined(QT_NO_SETTINGS)
+#ifndef QT_NO_LIBRARY
     if (!testFormat.isEmpty()) {
         for (int i = 0; i < keys.size(); ++i) {
             QImageIOPlugin *plugin = qobject_cast<QImageIOPlugin *>(l->instance(keys.at(i)));
@@ -203,7 +203,7 @@ static QImageIOHandler *createWriteHandlerHelper(QIODevice *device,
             }
         }
     }
-#endif
+#endif // QT_NO_LIBRARY
 
     if (!handler)
         return 0;
@@ -670,7 +670,7 @@ QList<QByteArray> QImageWriter::supportedImageFormats()
     formats << "png";
 #endif
 
-#if !defined (QT_NO_LIBRARY) && !defined(QT_NO_SETTINGS)
+#ifndef QT_NO_LIBRARY
     QFactoryLoader *l = loader();
     QStringList keys = l->keys();
     for (int i = 0; i < keys.count(); ++i) {
diff --git a/src/gui/inputmethod/qinputcontextfactory.cpp b/src/gui/inputmethod/qinputcontextfactory.cpp
index d47e343..ec8d8e2 100644
--- a/src/gui/inputmethod/qinputcontextfactory.cpp
+++ b/src/gui/inputmethod/qinputcontextfactory.cpp
@@ -81,7 +81,7 @@
 
 QT_BEGIN_NAMESPACE
 
-#if !defined(QT_NO_LIBRARY) && !defined(QT_NO_SETTINGS)
+#ifndef QT_NO_LIBRARY
 Q_GLOBAL_STATIC_WITH_ARGS(QFactoryLoader, loader,
     (QInputContextFactoryInterface_iid, QLatin1String("/inputmethods")))
 #endif
@@ -153,7 +153,7 @@ QInputContext *QInputContextFactory::create( const QString& key, QObject *parent
         result = new QCoeFepInputContext;
     }
 #endif
-#if defined(QT_NO_LIBRARY) || defined(QT_NO_SETTINGS)
+#ifdef QT_NO_LIBRARY
     Q_UNUSED(key);
 #else
     if (QInputContextFactoryInterface *factory =
@@ -193,7 +193,7 @@ QStringList QInputContextFactory::keys()
 #if defined(Q_WS_S60)
     result << QLatin1String("coefep");
 #endif
-#if !defined(QT_NO_LIBRARY) && !defined(QT_NO_SETTINGS)
+#ifndef QT_NO_LIBRARY
     result += loader()->keys();
 #endif // QT_NO_LIBRARY
     return result;
diff --git a/src/gui/itemviews/qtableview.cpp b/src/gui/itemviews/qtableview.cpp
index 80334a6..4492e53 100644
--- a/src/gui/itemviews/qtableview.cpp
+++ b/src/gui/itemviews/qtableview.cpp
@@ -2145,8 +2145,8 @@ int QTableView::sizeHintForRow(int row) const
 
     ensurePolished();
 
-    int left = qMax(0, columnAt(0));
-    int right = columnAt(d->viewport->width());
+    int left = qMax(0, d->horizontalHeader->visualIndexAt(0));
+    int right = d->horizontalHeader->visualIndexAt(d->viewport->width());
     if (right == -1) // the table don't have enough columns to fill the viewport
         right = d->model->columnCount(d->root) - 1;
 
@@ -2204,8 +2204,8 @@ int QTableView::sizeHintForColumn(int column) const
 
     ensurePolished();
 
-    int top = qMax(0, rowAt(0));
-    int bottom = rowAt(d->viewport->height());
+    int top = qMax(0, d->verticalHeader->visualIndexAt(0));
+    int bottom = d->verticalHeader->visualIndexAt(d->viewport->height());
     if (!isVisible() || bottom == -1) // the table don't have enough rows to fill the viewport
         bottom = d->model->rowCount(d->root) - 1;
 
diff --git a/src/gui/kernel/qguiplatformplugin.cpp b/src/gui/kernel/qguiplatformplugin.cpp
index c4119af..2dd251b 100644
--- a/src/gui/kernel/qguiplatformplugin.cpp
+++ b/src/gui/kernel/qguiplatformplugin.cpp
@@ -81,7 +81,7 @@ QGuiPlatformPlugin *qt_guiPlatformPlugin()
     static QGuiPlatformPlugin *plugin;
     if (!plugin)
     {
-#if !defined(QT_NO_LIBRARY) && !defined(QT_NO_SETTINGS)
+#ifndef QT_NO_LIBRARY
 
         QString key = QString::fromLocal8Bit(qgetenv("QT_PLATFORM_PLUGIN"));
 #ifdef Q_WS_X11
diff --git a/src/gui/kernel/qlayoutitem.cpp b/src/gui/kernel/qlayoutitem.cpp
index 6a91d95..e615b2d 100644
--- a/src/gui/kernel/qlayoutitem.cpp
+++ b/src/gui/kernel/qlayoutitem.cpp
@@ -516,9 +516,7 @@ bool QWidgetItem::hasHeightForWidth() const
 {
     if (isEmpty())
         return false;
-    if (wid->layout())
-        return wid->layout()->hasHeightForWidth();
-    return wid->sizePolicy().hasHeightForWidth();
+    return wid->hasHeightForWidth();
 }
 
 /*!
diff --git a/src/gui/kernel/qstackedlayout.cpp b/src/gui/kernel/qstackedlayout.cpp
index 7559066..4b49638 100644
--- a/src/gui/kernel/qstackedlayout.cpp
+++ b/src/gui/kernel/qstackedlayout.cpp
@@ -475,6 +475,32 @@ void QStackedLayout::setGeometry(const QRect &rect)
     }
 }
 
+bool QStackedLayout::hasHeightForWidth() const
+{
+    const int n = count();
+
+    for (int i = 0; i < n; ++i) {
+        if (QLayoutItem *item = itemAt(i)) {
+            if (item->hasHeightForWidth())
+                return true;
+        }
+    }
+    return false;
+}
+
+int QStackedLayout::heightForWidth(int width) const
+{
+    const int n = count();
+
+    int hfw = 0;
+    for (int i = 0; i < n; ++i) {
+        if (QLayoutItem *item = itemAt(i)) {
+            hfw = qMax(hfw, item->heightForWidth(width));
+        }
+    }
+    return hfw;
+}
+
 /*!
     \enum QStackedLayout::StackingMode
     \since 4.4
diff --git a/src/gui/kernel/qstackedlayout.h b/src/gui/kernel/qstackedlayout.h
index c069149..842b62b 100644
--- a/src/gui/kernel/qstackedlayout.h
+++ b/src/gui/kernel/qstackedlayout.h
@@ -95,6 +95,8 @@ public:
     QLayoutItem *itemAt(int) const;
     QLayoutItem *takeAt(int);
     void setGeometry(const QRect &rect);
+    bool hasHeightForWidth() const;
+    int heightForWidth(int width) const;
 
 Q_SIGNALS:
     void widgetRemoved(int index);
diff --git a/src/gui/kernel/qwidget.cpp b/src/gui/kernel/qwidget.cpp
index 20d1d30..399a27b 100644
--- a/src/gui/kernel/qwidget.cpp
+++ b/src/gui/kernel/qwidget.cpp
@@ -3825,6 +3825,11 @@ void QWidget::setMaximumSize(int maxw, int maxh)
     d->updateGeometry_helper(d->extra->minw == d->extra->maxw && d->extra->minh == d->extra->maxh);
 }
 
+bool QWidgetPrivate::hasHeightForWidth() const
+{
+    return layout ? layout->hasHeightForWidth() : size_policy.hasHeightForWidth();
+}
+
 /*!
     \overload
 
@@ -7970,6 +7975,18 @@ QSize QWidget::minimumSizeHint() const
     return QSize(-1, -1);
 }
 
+/*!
+    \internal
+    This is a bit hackish, but ideally this would have been a virtual
+    function so that subclasses could reimplement their own function.
+    Instead we add a virtual function to QWidgetPrivate.
+*/
+bool QWidget::hasHeightForWidth() const
+{
+    Q_D(const QWidget);
+    return d->hasHeightForWidth();
+}
+
 
 /*!
     \fn QWidget *QWidget::parentWidget() const
diff --git a/src/gui/kernel/qwidget.h b/src/gui/kernel/qwidget.h
index e12148b..6e5de7d 100644
--- a/src/gui/kernel/qwidget.h
+++ b/src/gui/kernel/qwidget.h
@@ -524,6 +524,7 @@ public:
 
     virtual QSize sizeHint() const;
     virtual QSize minimumSizeHint() const;
+    bool hasHeightForWidth() const;
 
     QSizePolicy sizePolicy() const;
     void setSizePolicy(QSizePolicy);
diff --git a/src/gui/kernel/qwidget_p.h b/src/gui/kernel/qwidget_p.h
index cad60b5..9926b2c 100644
--- a/src/gui/kernel/qwidget_p.h
+++ b/src/gui/kernel/qwidget_p.h
@@ -493,6 +493,7 @@ public:
 
     bool setMinimumSize_helper(int &minw, int &minh);
     bool setMaximumSize_helper(int &maxw, int &maxh);
+    virtual bool hasHeightForWidth() const;
     void setConstraints_sys();
     QWidget *childAt_helper(const QPoint &, bool) const;
     void updateGeometry_helper(bool forceUpdate);
diff --git a/src/gui/painting/qgraphicssystemfactory.cpp b/src/gui/painting/qgraphicssystemfactory.cpp
index 29f24a3..3c09894 100644
--- a/src/gui/painting/qgraphicssystemfactory.cpp
+++ b/src/gui/painting/qgraphicssystemfactory.cpp
@@ -50,7 +50,7 @@
 
 QT_BEGIN_NAMESPACE
 
-#if !defined(QT_NO_LIBRARY) && !defined(QT_NO_SETTINGS)
+#ifndef QT_NO_LIBRARY
 Q_GLOBAL_STATIC_WITH_ARGS(QFactoryLoader, loader,
     (QGraphicsSystemFactoryInterface_iid, QLatin1String("/graphicssystems"), Qt::CaseInsensitive))
 #endif
@@ -79,7 +79,7 @@ QGraphicsSystem *QGraphicsSystemFactory::create(const QString& key)
     else if (system.isEmpty() || system == QLatin1String("native"))
         return 0;
 
-#if !defined(QT_NO_LIBRARY) && !defined(QT_NO_SETTINGS)
+#ifndef QT_NO_LIBRARY
     if (!ret) {
         if (QGraphicsSystemFactoryInterface *factory = qobject_cast<QGraphicsSystemFactoryInterface*>(loader()->instance(system)))
             ret = factory->create(system);
@@ -100,7 +100,7 @@ QGraphicsSystem *QGraphicsSystemFactory::create(const QString& key)
 */
 QStringList QGraphicsSystemFactory::keys()
 {
-#if !defined(QT_NO_LIBRARY) && !defined(QT_NO_SETTINGS)
+#ifndef QT_NO_LIBRARY
     QStringList list = loader()->keys();
 #else
     QStringList list;
diff --git a/src/gui/painting/qpaintengine_mac.cpp b/src/gui/painting/qpaintengine_mac.cpp
index ac2fcf4..14ba94e 100644
--- a/src/gui/painting/qpaintengine_mac.cpp
+++ b/src/gui/painting/qpaintengine_mac.cpp
@@ -118,9 +118,10 @@ QMacCGContext::QMacCGContext(QPainter *p)
             QRegion clip = p->paintEngine()->systemClip();
             QTransform native = p->deviceTransform();
             QTransform logical = p->combinedTransform();
+
             if (p->hasClipping()) {
                 QRegion r = p->clipRegion();
-                r.translate(native.dx() - logical.dx(), native.dy() - logical.dy());
+                r.translate(native.dx(), native.dy());
                 if (clip.isEmpty())
                     clip = r;
                 else
@@ -128,10 +129,7 @@ QMacCGContext::QMacCGContext(QPainter *p)
             }
             qt_mac_clip_cg(context, clip, 0);
 
-            QPainterState *state = static_cast<QPainterState *>(pe->state);
-            Q_ASSERT(state);
-            if (!state->redirectionMatrix.isIdentity())
-                CGContextTranslateCTM(context, state->redirectionMatrix.dx(), state->redirectionMatrix.dy());
+            CGContextTranslateCTM(context, native.dx(), native.dy());
         }
     }
     CGContextRetain(context);
diff --git a/src/gui/styles/qstylefactory.cpp b/src/gui/styles/qstylefactory.cpp
index 0dbb21f..9009878 100644
--- a/src/gui/styles/qstylefactory.cpp
+++ b/src/gui/styles/qstylefactory.cpp
@@ -81,7 +81,7 @@ QT_BEGIN_INCLUDE_NAMESPACE
 QT_END_INCLUDE_NAMESPACE
 #endif
 
-#if !defined(QT_NO_LIBRARY) && !defined(QT_NO_SETTINGS)
+#ifndef QT_NO_LIBRARY
 Q_GLOBAL_STATIC_WITH_ARGS(QFactoryLoader, loader,
     (QStyleFactoryInterface_iid, QLatin1String("/styles"), Qt::CaseInsensitive))
 #endif
diff --git a/src/gui/text/qfontengine_mac.mm b/src/gui/text/qfontengine_mac.mm
index 0bfdbc0..a6510cb 100644
--- a/src/gui/text/qfontengine_mac.mm
+++ b/src/gui/text/qfontengine_mac.mm
@@ -226,8 +226,19 @@ bool QCoreTextFontEngineMulti::stringToCMap(const QChar *str, int len, QGlyphLay
     QFixed *outAdvances_y = glyphs->advances_y;
     glyph_t *initialGlyph = outGlyphs;
 
-    if (arraySize == 0)
-        return false;
+    if (arraySize == 0) {
+        // CoreText failed to shape the text we gave it, so we assume one glyph
+        // per character and build a list of invalid glyphs with zero advance
+        *nglyphs = len;
+        for (int i = 0; i < len; ++i) {
+            outGlyphs[i] = 0;
+            logClusters[i] = i;
+            outAdvances_x[i] = QFixed();
+            outAdvances_y[i] = QFixed();
+            outAttributes[i].clusterStart = true;
+        }
+        return true;
+    }
 
     const bool rtl = (CTRunGetStatus(static_cast<CTRunRef>(CFArrayGetValueAtIndex(array, 0))) & kCTRunStatusRightToLeft);
 
diff --git a/src/gui/text/qtextcontrol.cpp b/src/gui/text/qtextcontrol.cpp
index 3c596e5..a2ee659 100644
--- a/src/gui/text/qtextcontrol.cpp
+++ b/src/gui/text/qtextcontrol.cpp
@@ -885,8 +885,10 @@ void QTextControl::processEvent(QEvent *e, const QPointF &coordinateOffset, QWid
 void QTextControl::processEvent(QEvent *e, const QMatrix &matrix, QWidget *contextWidget)
 {
     Q_D(QTextControl);
-    if (d->interactionFlags & Qt::NoTextInteraction)
+    if (d->interactionFlags == Qt::NoTextInteraction) {
+        e->ignore();
         return;
+    }
 
     d->contextWidget = contextWidget;
 
diff --git a/src/gui/widgets/qsizegrip.cpp b/src/gui/widgets/qsizegrip.cpp
index c9d613a..40f3129 100644
--- a/src/gui/widgets/qsizegrip.cpp
+++ b/src/gui/widgets/qsizegrip.cpp
@@ -78,15 +78,6 @@ static QWidget *qt_sizegrip_topLevelWidget(QWidget* w)
     return w;
 }
 
-static inline bool hasHeightForWidth(QWidget *widget)
-{
-    if (!widget)
-        return false;
-    if (QLayout *layout = widget->layout())
-        return layout->hasHeightForWidth();
-    return widget->sizePolicy().hasHeightForWidth();
-}
-
 class QSizeGripPrivate : public QWidgetPrivate
 {
     Q_DECLARE_PUBLIC(QSizeGrip)
@@ -318,7 +309,7 @@ void QSizeGrip::mousePressEvent(QMouseEvent * e)
 #ifdef Q_WS_X11
     // Use a native X11 sizegrip for "real" top-level windows if supported.
     if (tlw->isWindow() && X11->isSupportedByWM(ATOM(_NET_WM_MOVERESIZE))
-        && !tlw->testAttribute(Qt::WA_DontShowOnScreen) && !hasHeightForWidth(tlw)) {
+        && !tlw->testAttribute(Qt::WA_DontShowOnScreen) && !tlw->hasHeightForWidth()) {
         XEvent xev;
         xev.xclient.type = ClientMessage;
         xev.xclient.message_type = ATOM(_NET_WM_MOVERESIZE);
@@ -340,7 +331,7 @@ void QSizeGrip::mousePressEvent(QMouseEvent * e)
     }
 #endif // Q_WS_X11
 #ifdef Q_WS_WIN
-    if (tlw->isWindow() && !tlw->testAttribute(Qt::WA_DontShowOnScreen) && !hasHeightForWidth(tlw)) {
+    if (tlw->isWindow() && !tlw->testAttribute(Qt::WA_DontShowOnScreen) && !tlw->hasHeightForWidth()) {
         uint orientation = 0;
         if (d->atBottom())
             orientation = d->atLeft() ? SZ_SIZEBOTTOMLEFT : SZ_SIZEBOTTOMRIGHT;
@@ -429,12 +420,12 @@ void QSizeGrip::mouseMoveEvent(QMouseEvent * e)
 
 #ifdef Q_WS_X11
     if (tlw->isWindow() && X11->isSupportedByWM(ATOM(_NET_WM_MOVERESIZE))
-        && tlw->isTopLevel() && !tlw->testAttribute(Qt::WA_DontShowOnScreen) && !hasHeightForWidth(tlw))
+        && tlw->isTopLevel() && !tlw->testAttribute(Qt::WA_DontShowOnScreen) && !tlw->hasHeightForWidth())
         return;
 #endif
 #ifdef Q_WS_WIN
     if (tlw->isWindow() && GetSystemMenu(tlw->winId(), FALSE) != 0 && internalWinId()
-        && !tlw->testAttribute(Qt::WA_DontShowOnScreen) && !hasHeightForWidth(tlw)) {
+        && !tlw->testAttribute(Qt::WA_DontShowOnScreen) && !tlw->hasHeightForWidth()) {
         MSG msg;
         while(PeekMessage(&msg, winId(), WM_MOUSEMOVE, WM_MOUSEMOVE, PM_REMOVE));
         return;
diff --git a/src/gui/widgets/qtabwidget.cpp b/src/gui/widgets/qtabwidget.cpp
index 4a61935..3463241 100644
--- a/src/gui/widgets/qtabwidget.cpp
+++ b/src/gui/widgets/qtabwidget.cpp
@@ -195,6 +195,7 @@ public:
     void _q_removeTab(int);
     void _q_tabMoved(int from, int to);
     void init();
+    bool hasHeightForWidth() const;
 
     QTabBar *tabs;
     QStackedWidget *stack;
@@ -873,6 +874,46 @@ QSize QTabWidget::minimumSizeHint() const
                     .expandedTo(QApplication::globalStrut());
 }
 
+int QTabWidget::heightForWidth(int width) const
+{
+    Q_D(const QTabWidget);
+    QStyleOption opt(0);
+    opt.init(this);
+    opt.state = QStyle::State_None;
+
+    QSize zero(0,0);
+    const QSize padding = style()->sizeFromContents(QStyle::CT_TabWidget, &opt, zero, this)
+                                  .expandedTo(QApplication::globalStrut());
+
+    QSize lc(0, 0), rc(0, 0);
+    if (d->leftCornerWidget)
+        lc = d->leftCornerWidget->sizeHint();
+    if(d->rightCornerWidget)
+        rc = d->rightCornerWidget->sizeHint();
+    if (!d->dirty) {
+        QTabWidget *that = (QTabWidget*)this;
+        that->setUpLayout(true);
+    }
+    QSize t(d->tabs->sizeHint());
+
+    if(usesScrollButtons())
+        t = t.boundedTo(QSize(200,200));
+    else
+        t = t.boundedTo(QApplication::desktop()->size());
+
+    const bool tabIsHorizontal = (d->pos == North || d->pos == South);
+    const int contentsWidth = width - padding.width();
+    int stackWidth = contentsWidth;
+    if (!tabIsHorizontal)
+        stackWidth -= qMax(t.width(), qMax(lc.width(), rc.width()));
+
+    int stackHeight = d->stack->heightForWidth(stackWidth);
+    QSize s(stackWidth, stackHeight);
+
+    QSize contentSize = basicSize(tabIsHorizontal, lc, rc, s, t);
+    return (contentSize + padding).expandedTo(QApplication::globalStrut()).height();
+}
+
 /*!
     \reimp
  */
@@ -905,6 +946,14 @@ void QTabWidgetPrivate::updateTabBarPosition()
     q->setUpLayout();
 }
 
+bool QTabWidgetPrivate::hasHeightForWidth() const
+{
+    bool has = size_policy.hasHeightForWidth();
+    if (!has && stack)
+        has = stack->hasHeightForWidth();
+    return has;
+}
+
 /*!
     \property QTabWidget::tabPosition
     \brief the position of the tabs in this tab widget
diff --git a/src/gui/widgets/qtabwidget.h b/src/gui/widgets/qtabwidget.h
index 68200c8..ee50655 100644
--- a/src/gui/widgets/qtabwidget.h
+++ b/src/gui/widgets/qtabwidget.h
@@ -129,6 +129,7 @@ public:
 
     QSize sizeHint() const;
     QSize minimumSizeHint() const;
+    int heightForWidth(int width) const;
 
     void setCornerWidget(QWidget * w, Qt::Corner corner = Qt::TopRightCorner);
     QWidget * cornerWidget(Qt::Corner corner = Qt::TopRightCorner) const;