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.""

35 files changed, 206 insertions, 99 deletions

diff --git a/src/corelib/codecs/qtextcodec.cpp b/src/corelib/codecs/qtextcodec.cpp
index 59a601e..c9fbec8 100644
--- a/src/corelib/codecs/qtextcodec.cpp
+++ b/src/corelib/codecs/qtextcodec.cpp
@@ -105,7 +105,7 @@
 
 QT_BEGIN_NAMESPACE
 
-#ifndef QT_NO_TEXTCODECPLUGIN
+#if !defined(QT_NO_LIBRARY) && !defined(QT_NO_TEXTCODECPLUGIN)
 Q_GLOBAL_STATIC_WITH_ARGS(QFactoryLoader, loader,
     (QTextCodecFactoryInterface_iid, QLatin1String("/codecs")))
 #endif
@@ -149,7 +149,7 @@ static bool nameMatch(const QByteArray &name, const QByteArray &test)
 
 static QTextCodec *createForName(const QByteArray &name)
 {
-#ifndef QT_NO_TEXTCODECPLUGIN
+#if !defined(QT_NO_LIBRARY) && !defined(QT_NO_TEXTCODECPLUGIN)
     QFactoryLoader *l = loader();
     QStringList keys = l->keys();
     for (int i = 0; i < keys.size(); ++i) {
@@ -1141,7 +1141,7 @@ QList<QByteArray> QTextCodec::availableCodecs()
     locker.unlock();
 #endif
 
-#ifndef QT_NO_TEXTCODECPLUGIN
+#if !defined(QT_NO_LIBRARY) && !defined(QT_NO_TEXTCODECPLUGIN)
     QFactoryLoader *l = loader();
     QStringList keys = l->keys();
     for (int i = 0; i < keys.size(); ++i) {
@@ -1181,7 +1181,7 @@ QList<int> QTextCodec::availableMibs()
     locker.unlock();
 #endif
 
-#ifndef QT_NO_TEXTCODECPLUGIN
+#if !defined(QT_NO_LIBRARY) && !defined(QT_NO_TEXTCODECPLUGIN)
     QFactoryLoader *l = loader();
     QStringList keys = l->keys();
     for (int i = 0; i < keys.size(); ++i) {
diff --git a/src/corelib/io/qurl.cpp b/src/corelib/io/qurl.cpp
index a60f206..4e580dd 100644
--- a/src/corelib/io/qurl.cpp
+++ b/src/corelib/io/qurl.cpp
@@ -2997,7 +2997,9 @@ bool qt_check_std3rules(const QChar *uc, int len)
         // only LDH is present
         if (c == '-' || (c >= '0' && c <= '9')
             || (c >= 'A' && c <= 'Z')
-            || (c >= 'a' && c <= 'z'))
+            || (c >= 'a' && c <= 'z')
+            //underscore is not supposed to be allowed, but other browser accept it (QTBUG-7434)
+            || c == '_')
             continue;
 
         return false;
diff --git a/src/corelib/kernel/qcoreapplication.cpp b/src/corelib/kernel/qcoreapplication.cpp
index bf2e2e4..609e6b3 100644
--- a/src/corelib/kernel/qcoreapplication.cpp
+++ b/src/corelib/kernel/qcoreapplication.cpp
@@ -514,7 +514,7 @@ QCoreApplication::QCoreApplication(int &argc, char **argv)
 {
     init();
     QCoreApplicationPrivate::eventDispatcher->startingUp();
-#if defined(Q_OS_SYMBIAN) && !defined(QT_NO_LIBRARY) && !defined(QT_NO_SETTINGS)
+#if defined(Q_OS_SYMBIAN) && !defined(QT_NO_LIBRARY)
     // Refresh factoryloader, as text codecs are requested during lib path
     // resolving process and won't be therefore properly loaded.
     // Unknown if this is symbian specific issue.
@@ -2189,7 +2189,7 @@ QString QCoreApplication::applicationVersion()
     return coreappdata()->applicationVersion;
 }
 
-#if !defined(QT_NO_LIBRARY) && !defined(QT_NO_SETTINGS)
+#ifndef QT_NO_LIBRARY
 
 Q_GLOBAL_STATIC_WITH_ARGS(QMutex, libraryPathMutex, (QMutex::Recursive))
 
@@ -2291,13 +2291,11 @@ QStringList QCoreApplication::libraryPaths()
  */
 void QCoreApplication::setLibraryPaths(const QStringList &paths)
 {
-#if !defined(QT_NO_LIBRARY) && !defined(QT_NO_SETTINGS)
     QMutexLocker locker(libraryPathMutex());
     if (!coreappdata()->app_libpaths)
         coreappdata()->app_libpaths = new QStringList;
     *(coreappdata()->app_libpaths) = paths;
     QFactoryLoader::refreshAll();
-#endif
 }
 
 /*!
@@ -2318,7 +2316,6 @@ void QCoreApplication::setLibraryPaths(const QStringList &paths)
  */
 void QCoreApplication::addLibraryPath(const QString &path)
 {
-#if !defined(QT_NO_LIBRARY) && !defined(QT_NO_SETTINGS)
     if (path.isEmpty())
         return;
 
@@ -2333,7 +2330,6 @@ void QCoreApplication::addLibraryPath(const QString &path)
         coreappdata()->app_libpaths->prepend(canonicalPath);
         QFactoryLoader::refreshAll();
     }
-#endif
 }
 
 /*!
@@ -2344,7 +2340,6 @@ void QCoreApplication::addLibraryPath(const QString &path)
 */
 void QCoreApplication::removeLibraryPath(const QString &path)
 {
-#if !defined(QT_NO_LIBRARY) && !defined(QT_NO_SETTINGS)
     if (path.isEmpty())
         return;
 
@@ -2356,7 +2351,6 @@ void QCoreApplication::removeLibraryPath(const QString &path)
     QString canonicalPath = QDir(path).canonicalPath();
     coreappdata()->app_libpaths->removeAll(canonicalPath);
     QFactoryLoader::refreshAll();
-#endif
 }
 
 #endif //QT_NO_LIBRARY
diff --git a/src/corelib/plugin/qfactoryloader.cpp b/src/corelib/plugin/qfactoryloader.cpp
index 87decc6..62d565a 100644
--- a/src/corelib/plugin/qfactoryloader.cpp
+++ b/src/corelib/plugin/qfactoryloader.cpp
@@ -41,7 +41,7 @@
 
 #include "qfactoryloader_p.h"
 
-#if !defined (QT_NO_LIBRARY) && !defined(QT_NO_SETTINGS)
+#ifndef QT_NO_LIBRARY
 #include "qfactoryinterface.h"
 #include "qmap.h"
 #include <qdir.h>
diff --git a/src/corelib/plugin/qfactoryloader_p.h b/src/corelib/plugin/qfactoryloader_p.h
index 51426ba..10e6e2a 100644
--- a/src/corelib/plugin/qfactoryloader_p.h
+++ b/src/corelib/plugin/qfactoryloader_p.h
@@ -57,7 +57,7 @@
 #include "QtCore/qstringlist.h"
 #include "private/qlibrary_p.h"
 
-#if !defined (QT_NO_LIBRARY) && !defined(QT_NO_SETTINGS)
+#ifndef QT_NO_LIBRARY
 
 QT_BEGIN_NAMESPACE
 
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/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;
diff --git a/src/multimedia/multimedia/audio/qaudiodevicefactory.cpp b/src/multimedia/multimedia/audio/qaudiodevicefactory.cpp
index 74add64..96545b4 100644
--- a/src/multimedia/multimedia/audio/qaudiodevicefactory.cpp
+++ b/src/multimedia/multimedia/audio/qaudiodevicefactory.cpp
@@ -67,7 +67,7 @@
 
 QT_BEGIN_NAMESPACE
 
-#if !defined (QT_NO_LIBRARY) && !defined(QT_NO_SETTINGS)
+#ifndef QT_NO_LIBRARY
 Q_GLOBAL_STATIC_WITH_ARGS(QFactoryLoader, loader,
         (QAudioEngineFactoryInterface_iid, QLatin1String("/audio"), Qt::CaseInsensitive))
 #endif
@@ -139,7 +139,7 @@ QList<QAudioDeviceInfo> QAudioDeviceFactory::availableDevices(QAudio::Mode mode)
 #endif
 #endif
 
-#if !defined (QT_NO_LIBRARY) && !defined(QT_NO_SETTINGS)
+#ifndef QT_NO_LIBRARY
     QFactoryLoader* l = loader();
 
     foreach (QString const& key, l->keys()) {
@@ -158,7 +158,7 @@ QList<QAudioDeviceInfo> QAudioDeviceFactory::availableDevices(QAudio::Mode mode)
 
 QAudioDeviceInfo QAudioDeviceFactory::defaultInputDevice()
 {
-#if !defined (QT_NO_LIBRARY) && !defined(QT_NO_SETTINGS)
+#ifndef QT_NO_LIBRARY
     QAudioEngineFactoryInterface* plugin = qobject_cast<QAudioEngineFactoryInterface*>(loader()->instance(QLatin1String("default")));
 
     if (plugin) {
@@ -178,7 +178,7 @@ QAudioDeviceInfo QAudioDeviceFactory::defaultInputDevice()
 
 QAudioDeviceInfo QAudioDeviceFactory::defaultOutputDevice()
 {
-#if !defined (QT_NO_LIBRARY) && !defined(QT_NO_SETTINGS)
+#ifndef QT_NO_LIBRARY
     QAudioEngineFactoryInterface* plugin = qobject_cast<QAudioEngineFactoryInterface*>(loader()->instance(QLatin1String("default")));
 
     if (plugin) {
@@ -207,7 +207,7 @@ QAbstractAudioDeviceInfo* QAudioDeviceFactory::audioDeviceInfo(const QString &re
 #endif
 #endif
 
-#if !defined (QT_NO_LIBRARY) && !defined(QT_NO_SETTINGS)
+#ifndef QT_NO_LIBRARY
     QAudioEngineFactoryInterface* plugin =
         qobject_cast<QAudioEngineFactoryInterface*>(loader()->instance(realm));
 
@@ -238,7 +238,7 @@ QAbstractAudioInput* QAudioDeviceFactory::createInputDevice(QAudioDeviceInfo con
         return new QAudioInputPrivate(deviceInfo.handle(), format);
 #endif
 #endif
-#if !defined (QT_NO_LIBRARY) && !defined(QT_NO_SETTINGS)
+#ifndef QT_NO_LIBRARY
     QAudioEngineFactoryInterface* plugin =
         qobject_cast<QAudioEngineFactoryInterface*>(loader()->instance(deviceInfo.realm()));
 
@@ -260,7 +260,7 @@ QAbstractAudioOutput* QAudioDeviceFactory::createOutputDevice(QAudioDeviceInfo c
 #endif
 #endif
 
-#if !defined (QT_NO_LIBRARY) && !defined(QT_NO_SETTINGS)
+#ifndef QT_NO_LIBRARY
     QAudioEngineFactoryInterface* plugin =
         qobject_cast<QAudioEngineFactoryInterface*>(loader()->instance(deviceInfo.realm()));
 
diff --git a/src/network/bearer/qnetworkconfigmanager_p.cpp b/src/network/bearer/qnetworkconfigmanager_p.cpp
index a7bd2d5..471927a 100644
--- a/src/network/bearer/qnetworkconfigmanager_p.cpp
+++ b/src/network/bearer/qnetworkconfigmanager_p.cpp
@@ -54,8 +54,10 @@
 
 QT_BEGIN_NAMESPACE
 
+#ifndef QT_NO_LIBRARY
 Q_GLOBAL_STATIC_WITH_ARGS(QFactoryLoader, loader,
                           (QBearerEngineFactoryInterface_iid, QLatin1String("/bearer")))
+#endif
 
 QNetworkConfigurationManagerPrivate::QNetworkConfigurationManagerPrivate()
 :   pollTimer(0), mutex(QMutex::Recursive), forcedPolling(0), firstUpdate(true)
@@ -354,6 +356,7 @@ void QNetworkConfigurationManagerPrivate::updateConfigurations()
 
         updating = false;
 
+#ifndef QT_NO_LIBRARY
         QFactoryLoader *l = loader();
 
         QBearerEngine *generic = 0;
@@ -387,6 +390,7 @@ void QNetworkConfigurationManagerPrivate::updateConfigurations()
 
         if (generic)
             sessionEngines.append(generic);
+#endif // QT_NO_LIBRARY
     }
 
     QBearerEngine *engine = qobject_cast<QBearerEngine *>(sender());
diff --git a/src/opengl/gl2paintengineex/qglengineshadersource_p.h b/src/opengl/gl2paintengineex/qglengineshadersource_p.h
index 3379296..8dba951 100644
--- a/src/opengl/gl2paintengineex/qglengineshadersource_p.h
+++ b/src/opengl/gl2paintengineex/qglengineshadersource_p.h
@@ -282,7 +282,7 @@ static const char* const qglslPositionWithTextureBrushVertexShader = "\n\
     uniform   mediump vec2      halfViewportSize; \n\
     uniform   highp   vec2      invertedTextureSize; \n\
     uniform   highp   mat3      brushTransform; \n\
-    varying   highp   vec2      textureCoords; \n\
+    varying   highp   vec2      brushTextureCoords; \n\
     void setPosition(void) \n\
     { \n\
         highp mat3 pmvMatrix = mat3(pmvMatrix1, pmvMatrix2, pmvMatrix3); \n\
@@ -292,7 +292,7 @@ static const char* const qglslPositionWithTextureBrushVertexShader = "\n\
         mediump vec3 hTexCoords = brushTransform * vec3(viewportCoords, 1); \n\
         mediump float invertedHTexCoordsZ = 1.0 / hTexCoords.z; \n\
         gl_Position = vec4(gl_Position.xy * invertedHTexCoordsZ, 0.0, invertedHTexCoordsZ); \n\
-        textureCoords.xy = (hTexCoords.xy * invertedTextureSize) * gl_Position.w; \n\
+        brushTextureCoords.xy = (hTexCoords.xy * invertedTextureSize) * gl_Position.w; \n\
     }\n";
 
 static const char* const qglslAffinePositionWithTextureBrushVertexShader
@@ -303,28 +303,28 @@ static const char* const qglslAffinePositionWithTextureBrushVertexShader
 // we emulate GL_REPEAT by only taking the fractional part of the texture coords.
 // TODO: Special case POT textures which don't need this emulation
 static const char* const qglslTextureBrushSrcFragmentShader = "\n\
-    varying highp   vec2      textureCoords; \n\
+    varying highp   vec2      brushTextureCoords; \n\
     uniform lowp    sampler2D brushTexture; \n\
     lowp vec4 srcPixel() { \n\
-        return texture2D(brushTexture, fract(textureCoords)); \n\
+        return texture2D(brushTexture, fract(brushTextureCoords)); \n\
     }\n";
 #else
 static const char* const qglslTextureBrushSrcFragmentShader = "\n\
-    varying   highp   vec2      textureCoords; \n\
+    varying   highp   vec2      brushTextureCoords; \n\
     uniform   lowp    sampler2D brushTexture; \n\
     lowp vec4 srcPixel() \n\
     { \n\
-        return texture2D(brushTexture, textureCoords); \n\
+        return texture2D(brushTexture, brushTextureCoords); \n\
     }\n";
 #endif
 
 static const char* const qglslTextureBrushSrcWithPatternFragmentShader = "\n\
-    varying   highp   vec2      textureCoords; \n\
+    varying   highp   vec2      brushTextureCoords; \n\
     uniform   lowp    vec4      patternColor; \n\
     uniform   lowp    sampler2D brushTexture; \n\
     lowp vec4 srcPixel() \n\
     { \n\
-        return patternColor * (1.0 - texture2D(brushTexture, textureCoords).r); \n\
+        return patternColor * (1.0 - texture2D(brushTexture, brushTextureCoords).r); \n\
     }\n";
 
 // Solid Fill Brush
diff --git a/src/opengl/gl2paintengineex/qpaintengineex_opengl2.cpp b/src/opengl/gl2paintengineex/qpaintengineex_opengl2.cpp
index 8460430..4461358 100644
--- a/src/opengl/gl2paintengineex/qpaintengineex_opengl2.cpp
+++ b/src/opengl/gl2paintengineex/qpaintengineex_opengl2.cpp
@@ -1337,9 +1337,12 @@ void QGL2PaintEngineEx::drawStaticTextItem(QStaticTextItem *textItem)
     d->drawCachedGlyphs(glyphType, textItem, true);
 }
 
-void QGL2PaintEngineEx::drawTexture(const QRectF &dest, GLuint textureId, const QSize &size, const QRectF &src)
+bool QGL2PaintEngineEx::drawTexture(const QRectF &dest, GLuint textureId, const QSize &size, const QRectF &src)
 {
     Q_D(QGL2PaintEngineEx);
+    if (!d->shaderManager)
+        return false;
+
     ensureActive();
     d->transferMode(ImageDrawingMode);
 
@@ -1354,6 +1357,7 @@ void QGL2PaintEngineEx::drawTexture(const QRectF &dest, GLuint textureId, const
     d->updateTextureFilter(GL_TEXTURE_2D, GL_CLAMP_TO_EDGE,
                            state()->renderHints & QPainter::SmoothPixmapTransform, textureId);
     d->drawTexture(dest, srcRect, size, false);
+    return true;
 }
 
 void QGL2PaintEngineEx::drawTextItem(const QPointF &p, const QTextItem &textItem)
diff --git a/src/opengl/gl2paintengineex/qpaintengineex_opengl2_p.h b/src/opengl/gl2paintengineex/qpaintengineex_opengl2_p.h
index 30f6634..6ba0c42 100644
--- a/src/opengl/gl2paintengineex/qpaintengineex_opengl2_p.h
+++ b/src/opengl/gl2paintengineex/qpaintengineex_opengl2_p.h
@@ -123,7 +123,6 @@ public:
     virtual void renderHintsChanged();
     virtual void transformChanged();
 
-    virtual void drawTexture(const QRectF &r, GLuint textureId, const QSize &size, const QRectF &sr);
     virtual void drawPixmap(const QRectF &r, const QPixmap &pm, const QRectF &sr);
     virtual void drawPixmapFragments(const QPainter::PixmapFragment *fragments, int fragmentCount, const QPixmap &pixmap,
                                      QPainter::PixmapFragmentHints hints);
@@ -136,6 +135,8 @@ public:
 
     virtual void drawStaticTextItem(QStaticTextItem *textItem);
 
+    bool drawTexture(const QRectF &r, GLuint textureId, const QSize &size, const QRectF &sr);
+
     Type type() const { return OpenGL2; }
 
     virtual void setState(QPainterState *s);
diff --git a/src/opengl/qgl.cpp b/src/opengl/qgl.cpp
index bf77eda..7abf4bc 100644
--- a/src/opengl/qgl.cpp
+++ b/src/opengl/qgl.cpp
@@ -2782,8 +2782,8 @@ void QGLContext::drawTexture(const QRectF &target, GLuint textureId, GLenum text
          if (!eng->isNativePaintingActive()) {
             QRectF src(0, 0, target.width(), target.height());
             QSize size(target.width(), target.height());
-            eng->drawTexture(target, textureId, size, src);
-            return;
+            if (eng->drawTexture(target, textureId, size, src))
+                return;
         }
      }
 
@@ -2858,8 +2858,8 @@ void QGLContext::drawTexture(const QPointF &point, GLuint textureId, GLenum text
             QRectF dest(point, QSizeF(textureWidth, textureHeight));
             QRectF src(0, 0, textureWidth, textureHeight);
             QSize size(textureWidth, textureHeight);
-            eng->drawTexture(dest, textureId, size, src);
-            return;
+            if (eng->drawTexture(dest, textureId, size, src))
+                return;
         }
     }
 
@@ -5169,11 +5169,17 @@ Q_OPENGL_EXPORT void qt_set_gl_library_name(const QString& name)
 Q_OPENGL_EXPORT const QString qt_gl_library_name()
 {
     if (qt_gl_lib_name()->isNull()) {
-#if defined(Q_WS_X11) || defined(Q_WS_QWS)
-        return QLatin1String("GL");
-#else // Q_WS_MAC
+#ifdef Q_WS_MAC
         return QLatin1String("/System/Library/Frameworks/OpenGL.framework/Versions/A/Libraries/libGL.dylib");
-#endif
+#else
+# if defined(QT_OPENGL_ES_1)
+        return QLatin1String("GLES_CM");
+# elif defined(QT_OPENGL_ES_2)
+        return QLatin1String("GLESv2");
+# else
+        return QLatin1String("GL");
+# endif
+#endif // defined Q_WS_MAC
     }
     return *qt_gl_lib_name();
 }
diff --git a/src/opengl/qwindowsurface_gl.cpp b/src/opengl/qwindowsurface_gl.cpp
index 92a347b..7efa9bc 100644
--- a/src/opengl/qwindowsurface_gl.cpp
+++ b/src/opengl/qwindowsurface_gl.cpp
@@ -97,7 +97,6 @@ extern Q_GUI_EXPORT bool qt_win_owndc_required;
 QGLGraphicsSystem::QGLGraphicsSystem(bool useX11GL)
     : QGraphicsSystem(), m_useX11GL(useX11GL)
 {
-    QGLWindowSurface::surfaceFormat.setSampleBuffers(true);
 #if defined(Q_WS_X11) && !defined(QT_OPENGL_ES)
     // only override the system defaults if the user hasn't already
     // picked a visual
diff --git a/src/sql/kernel/qsqldatabase.cpp b/src/sql/kernel/qsqldatabase.cpp
index 1416ee3..76bc2b0 100644
--- a/src/sql/kernel/qsqldatabase.cpp
+++ b/src/sql/kernel/qsqldatabase.cpp
@@ -98,7 +98,7 @@
 
 QT_BEGIN_NAMESPACE
 
-#if !defined(QT_NO_LIBRARY) && !defined(QT_NO_SETTINGS)
+#ifndef QT_NO_LIBRARY
 Q_GLOBAL_STATIC_WITH_ARGS(QFactoryLoader, loader,
                           (QSqlDriverFactoryInterface_iid,
                            QLatin1String("/sqldrivers")))
@@ -576,7 +576,7 @@ QStringList QSqlDatabase::drivers()
     list << QLatin1String("QIBASE");
 #endif
 
-#if !defined(QT_NO_LIBRARY) && !defined(QT_NO_SETTINGS)
+#ifndef QT_NO_LIBRARY
     if (QFactoryLoader *fl = loader()) {
         QStringList keys = fl->keys();
         for (QStringList::const_iterator i = keys.constBegin(); i != keys.constEnd(); ++i) {
@@ -774,7 +774,7 @@ void QSqlDatabasePrivate::init(const QString &type)
         }
     }
 
-#if !defined(QT_NO_LIBRARY) && !defined(QT_NO_SETTINGS)
+#ifndef QT_NO_LIBRARY
     if (!driver && loader()) {
         if (QSqlDriverFactoryInterface *factory = qobject_cast<QSqlDriverFactoryInterface*>(loader()->instance(type)))
             driver = factory->create(type);
diff --git a/src/svg/qsvghandler.cpp b/src/svg/qsvghandler.cpp
index b6e771f..d545440 100644
--- a/src/svg/qsvghandler.cpp
+++ b/src/svg/qsvghandler.cpp
@@ -3751,7 +3751,7 @@ bool QSvgHandler::characters(const QStringRef &str)
         QCss::Parser(css).parse(&sheet);
         m_selector->styleSheets.append(sheet);
         return true;
-    } else if (m_skipNodes.isEmpty() || m_skipNodes.top() == Unknown)
+    } else if (m_skipNodes.isEmpty() || m_skipNodes.top() == Unknown || m_nodes.isEmpty())
         return true;
 
     if (m_nodes.top()->type() == QSvgNode::TEXT || m_nodes.top()->type() == QSvgNode::TEXTAREA) {