Merge branch '4.6' of scm.dev.nokia.troll.no:qt/oslo-staging-2 into 4.6-integration

* '4.6' of scm.dev.nokia.troll.no:qt/oslo-staging-2:
  (ODBC) Use wchar_t instead of assuming 2 bytes.
  Fixed some global QIcon/QPixmap instances that leaked handles on X11.
  Speed up QListView test
  QListView: fix crash when hiding many of the lasts item in a QListView
  Fixed warnings and crash when painting graphics effects outside scene.
  Stabilize QLineEdit test on X11
  (sqlite) Allow shared cache mode
  Make generate uid3 (symbian) work on 64 bit host platform.
  Updated the docs for QPainter::begin/endNativePainting()
  Compile fix for network benchmarks.
  Add a pixmap modification hook to blur pixmap filter cache
  Delete benchmark examples (qtestlib-simple and qtwidgets).
  Restructure tests/benchmarks directory.
  Fixed QImagReader::setAutoDetectImageFormat() to work with plugins.
  QLineEdit: regression: read-only line edits would eat shortcuts.
  QGraphicsItem: Do not crash at exit if there is static QGraphicsItem.
  Make QTextCodec reentrant.
  Fixed bug where GL widget was not fully updated on Vista.

21 files changed, 214 insertions, 103 deletions

diff --git a/src/corelib/codecs/qsimplecodec.cpp b/src/corelib/codecs/qsimplecodec.cpp
index 445565a..4cc7912 100644
--- a/src/corelib/codecs/qsimplecodec.cpp
+++ b/src/corelib/codecs/qsimplecodec.cpp
@@ -681,7 +681,7 @@ QByteArray QSimpleTextCodec::convertFromUnicode(const QChar *in, int length, Con
     int u;
     const QChar* ucp = in;
     unsigned char* rp = (unsigned char *)r.data();
-    const unsigned char* rmp = (const unsigned char *)reverseMap->data();
+    const unsigned char* rmp = (const unsigned char *)reverseMap->constData();
     int rmsize = (int) reverseMap->size();
     while(i--)
     {
diff --git a/src/corelib/codecs/qtextcodec.cpp b/src/corelib/codecs/qtextcodec.cpp
index b63a82e..ff40af5 100644
--- a/src/corelib/codecs/qtextcodec.cpp
+++ b/src/corelib/codecs/qtextcodec.cpp
@@ -79,7 +79,7 @@
 #  endif
 #endif // QT_NO_CODECS
 #include "qlocale.h"
-#include "private/qmutexpool_p.h"
+#include "qmutex.h"
 
 #include <stdlib.h>
 #include <ctype.h>
@@ -659,13 +659,13 @@ static void setupLocaleMapper()
 #endif
 }
 
-
-static void setup()
-{
 #ifndef QT_NO_THREAD
-    QMutexLocker locker(QMutexPool::globalInstanceGet(&all));
+Q_GLOBAL_STATIC_WITH_ARGS(QMutex, textCodecsMutex, (QMutex::Recursive));
 #endif
 
+// textCodecsMutex need to be locked to enter this function
+static void setup()
+{
     if (all)
         return;
 
@@ -903,8 +903,6 @@ QTextCodec::ConverterState::~ConverterState()
 */
 
 /*!
-    \nonreentrant
-
     Constructs a QTextCodec, and gives it the highest precedence. The
     QTextCodec should always be constructed on the heap (i.e. with \c
     new). Qt takes ownership and will delete it when the application
@@ -912,6 +910,9 @@ QTextCodec::ConverterState::~ConverterState()
 */
 QTextCodec::QTextCodec()
 {
+#ifndef QT_NO_THREAD
+    QMutexLocker locker(textCodecsMutex());
+#endif
     setup();
     all->prepend(this);
 }
@@ -929,8 +930,12 @@ QTextCodec::~QTextCodec()
     if (!destroying_is_ok)
         qWarning("QTextCodec::~QTextCodec: Called by application");
 #endif
-    if (all)
+    if (all) {
+#ifndef QT_NO_THREAD
+        QMutexLocker locker(textCodecsMutex());
+#endif
         all->removeAll(this);
+    }
 }
 
 /*!
@@ -951,6 +956,9 @@ QTextCodec *QTextCodec::codecForName(const QByteArray &name)
     if (name.isEmpty())
         return 0;
 
+#ifndef QT_NO_THREAD
+    QMutexLocker locker(textCodecsMutex());
+#endif
     setup();
 
     for (int i = 0; i < all->size(); ++i) {
@@ -973,6 +981,9 @@ QTextCodec *QTextCodec::codecForName(const QByteArray &name)
 */
 QTextCodec* QTextCodec::codecForMib(int mib)
 {
+#ifndef QT_NO_THREAD
+    QMutexLocker locker(textCodecsMutex());
+#endif
     setup();
 
     // Qt 3 used 1000 (mib for UCS2) as its identifier for the utf16 codec. Map
@@ -1001,6 +1012,9 @@ QTextCodec* QTextCodec::codecForMib(int mib)
 */
 QList<QByteArray> QTextCodec::availableCodecs()
 {
+#ifndef QT_NO_THREAD
+    QMutexLocker locker(textCodecsMutex());
+#endif
     setup();
 
     QList<QByteArray> codecs;
@@ -1008,6 +1022,11 @@ QList<QByteArray> QTextCodec::availableCodecs()
         codecs += all->at(i)->name();
         codecs += all->at(i)->aliases();
     }
+
+#ifndef QT_NO_THREAD
+    locker.unlock();
+#endif
+
 #ifndef QT_NO_TEXTCODECPLUGIN
     QFactoryLoader *l = loader();
     QStringList keys = l->keys();
@@ -1031,11 +1050,19 @@ QList<QByteArray> QTextCodec::availableCodecs()
 */
 QList<int> QTextCodec::availableMibs()
 {
+#ifndef QT_NO_THREAD
+    QMutexLocker locker(textCodecsMutex());
+#endif
     setup();
 
     QList<int> codecs;
     for (int i = 0; i < all->size(); ++i)
         codecs += all->at(i)->mibEnum();
+
+#ifndef QT_NO_THREAD
+    locker.unlock();
+#endif
+
 #ifndef QT_NO_TEXTCODECPLUGIN
     QFactoryLoader *l = loader();
     QStringList keys = l->keys();
@@ -1082,6 +1109,9 @@ QTextCodec* QTextCodec::codecForLocale()
     if (localeMapper)
         return localeMapper;
 
+#ifndef QT_NO_THREAD
+    QMutexLocker locker(textCodecsMutex());
+#endif
     setup();
 
     return localeMapper;
diff --git a/src/gui/graphicsview/qgraphicsitem.cpp b/src/gui/graphicsview/qgraphicsitem.cpp
index b4e19d1..39c41c4 100644
--- a/src/gui/graphicsview/qgraphicsitem.cpp
+++ b/src/gui/graphicsview/qgraphicsitem.cpp
@@ -1392,7 +1392,8 @@ QGraphicsItem::~QGraphicsItem()
     }
     delete d_ptr->transformData;
 
-    qt_dataStore()->data.remove(this);
+    if (QGraphicsItemCustomDataStore *dataStore = qt_dataStore())
+        dataStore->data.remove(this);
 }
 
 /*!
diff --git a/src/gui/image/qicon.cpp b/src/gui/image/qicon.cpp
index ac1d303..bf6eb8d 100644
--- a/src/gui/image/qicon.cpp
+++ b/src/gui/image/qicon.cpp
@@ -104,6 +104,15 @@ QT_BEGIN_NAMESPACE
 
 static QBasicAtomicInt serialNumCounter = Q_BASIC_ATOMIC_INITIALIZER(1);
 
+static void qt_cleanup_icon_cache();
+typedef QCache<QString, QIcon> IconCache;
+Q_GLOBAL_STATIC_WITH_INITIALIZER(IconCache, qtIconCache, qAddPostRoutine(qt_cleanup_icon_cache))
+
+static void qt_cleanup_icon_cache()
+{
+    qtIconCache()->clear();
+}
+
 QIconPrivate::QIconPrivate()
     : engine(0), ref(1),
     serialNum(serialNumCounter.fetchAndAddRelaxed(1)),
@@ -963,15 +972,13 @@ QString QIcon::themeName()
 */
 QIcon QIcon::fromTheme(const QString &name, const QIcon &fallback)
 {
-    static QCache <QString, QIcon> iconCache;
-
     QIcon icon;
 
-    if (iconCache.contains(name)) {
-        icon = *iconCache.object(name);
+    if (qtIconCache()->contains(name)) {
+        icon = *qtIconCache()->object(name);
     } else {
         QIcon *cachedIcon  = new QIcon(new QIconLoaderEngine(name));
-        iconCache.insert(name, cachedIcon);
+        qtIconCache()->insert(name, cachedIcon);
         icon = *cachedIcon;
     }
 
diff --git a/src/gui/image/qimagereader.cpp b/src/gui/image/qimagereader.cpp
index c9e015c..9320cfc 100644
--- a/src/gui/image/qimagereader.cpp
+++ b/src/gui/image/qimagereader.cpp
@@ -263,25 +263,37 @@ static QImageIOHandler *createReadHandlerHelper(QIODevice *device,
             device->seek(pos);
     }
 
-    if (!handler && !testFormat.isEmpty() && autoDetectImageFormat && !ignoresFormatAndExtension) {
+    if (!handler && !testFormat.isEmpty() && !ignoresFormatAndExtension) {
         // check if any plugin supports the format (they are not allowed to
         // read from the device yet).
         const qint64 pos = device ? device->pos() : 0;
-        for (int i = 0; i < keys.size(); ++i) {
-            if (i != suffixPluginIndex) {
-                QImageIOPlugin *plugin = qobject_cast<QImageIOPlugin *>(l->instance(keys.at(i)));
-                if (plugin && plugin->capabilities(device, testFormat) & QImageIOPlugin::CanRead) {
+
+        if (autoDetectImageFormat) {
+            for (int i = 0; i < keys.size(); ++i) {
+                if (i != suffixPluginIndex) {
+                    QImageIOPlugin *plugin = qobject_cast<QImageIOPlugin *>(l->instance(keys.at(i)));
+                    if (plugin && plugin->capabilities(device, testFormat) & QImageIOPlugin::CanRead) {
 #ifdef QIMAGEREADER_DEBUG
-                    qDebug() << "QImageReader::createReadHandler: the" << keys.at(i) << "plugin can read this format";
+                        qDebug() << "QImageReader::createReadHandler: the" << keys.at(i) << "plugin can read this format";
 #endif
-                    handler = plugin->create(device, testFormat);
-                    break;
+                        handler = plugin->create(device, testFormat);
+                        break;
+                    }
                 }
             }
+        } else {
+            QImageIOPlugin *plugin = qobject_cast<QImageIOPlugin *>(l->instance(QLatin1String(testFormat)));
+            if (plugin && plugin->capabilities(device, testFormat) & QImageIOPlugin::CanRead) {
+#ifdef QIMAGEREADER_DEBUG
+                qDebug() << "QImageReader::createReadHandler: the" << testFormat << "plugin can read this format";
+#endif
+                handler = plugin->create(device, testFormat);
+            }
         }
         if (device && !device->isSequential())
             device->seek(pos);
     }
+
 #endif // QT_NO_LIBRARY
 
     // if we don't have a handler yet, check if we have built-in support for
diff --git a/src/gui/image/qpixmapfilter.cpp b/src/gui/image/qpixmapfilter.cpp
index 37a6a18..7cf942c 100644
--- a/src/gui/image/qpixmapfilter.cpp
+++ b/src/gui/image/qpixmapfilter.cpp
@@ -422,6 +422,9 @@ void QPixmapConvolutionFilter::draw(QPainter *painter, const QPointF &p, const Q
     if(d->kernelWidth<=0 || d->kernelHeight <= 0)
         return;
 
+    if (src.isNull())
+        return;
+
     QPixmapFilter *filter = painter->paintEngine() && painter->paintEngine()->isExtended() ?
         static_cast<QPaintEngineEx *>(painter->paintEngine())->pixmapFilter(type(), this) : 0;
     QPixmapConvolutionFilter *convolutionFilter = static_cast<QPixmapConvolutionFilter*>(filter);
@@ -902,6 +905,9 @@ void QPixmapBlurFilter::draw(QPainter *painter, const QPointF &p, const QPixmap
     if (!painter->isActive())
         return;
 
+    if (src.isNull())
+        return;
+
     QRectF srcRect = rect;
     if (srcRect.isNull())
         srcRect = src.rect();
@@ -1082,6 +1088,10 @@ void QPixmapColorizeFilter::setStrength(qreal strength)
 void QPixmapColorizeFilter::draw(QPainter *painter, const QPointF &dest, const QPixmap &src, const QRectF &srcRect) const
 {
     Q_D(const QPixmapColorizeFilter);
+
+    if (src.isNull())
+        return;
+
     QPixmapFilter *filter = painter->paintEngine() && painter->paintEngine()->isExtended() ?
         static_cast<QPaintEngineEx *>(painter->paintEngine())->pixmapFilter(type(), this) : 0;
     QPixmapColorizeFilter *colorizeFilter = static_cast<QPixmapColorizeFilter*>(filter);
@@ -1312,6 +1322,10 @@ void QPixmapDropShadowFilter::draw(QPainter *p,
                                    const QRectF &src) const
 {
     Q_D(const QPixmapDropShadowFilter);
+
+    if (px.isNull())
+        return;
+
     QPixmapFilter *filter = p->paintEngine() && p->paintEngine()->isExtended() ?
         static_cast<QPaintEngineEx *>(p->paintEngine())->pixmapFilter(type(), this) : 0;
     QPixmapDropShadowFilter *dropShadowFilter = static_cast<QPixmapDropShadowFilter*>(filter);
diff --git a/src/gui/itemviews/qlistview.cpp b/src/gui/itemviews/qlistview.cpp
index 19b1e8c..b2def39 100644
--- a/src/gui/itemviews/qlistview.cpp
+++ b/src/gui/itemviews/qlistview.cpp
@@ -2160,7 +2160,7 @@ void QListModeViewBase::scrollContentsBy(int dx, int dy, bool scrollElasticBand)
     } else {
         if (flowPositions.isEmpty())
             return;
-        const int max = flowPositions.count() - 1;
+        const int max = scrollValueMap.count() - 1;
         if (vertical && flow() == QListView::TopToBottom && dy != 0) {
             int currentValue = qBound(0, verticalValue, max);
             int previousValue = qBound(0, currentValue + dy, max);
diff --git a/src/gui/kernel/qapplication_win.cpp b/src/gui/kernel/qapplication_win.cpp
index 3355272..0a4869b 100644
--- a/src/gui/kernel/qapplication_win.cpp
+++ b/src/gui/kernel/qapplication_win.cpp
@@ -928,7 +928,11 @@ const QString qt_reg_winclass(QWidget *w)        // register window class
     uint style;
     bool icon;
     QString cname;
-    if (flags & Qt::MSWindowsOwnDC) {
+    if (qt_widget_private(w)->isGLWidget) {
+        cname = QLatin1String("QGLWidget");
+        style = CS_DBLCLKS;
+        icon  = true;
+    } else if (flags & Qt::MSWindowsOwnDC) {
         cname = QLatin1String("QWidgetOwnDC");
         style = CS_DBLCLKS;
 #ifndef Q_WS_WINCE
@@ -1021,7 +1025,7 @@ const QString qt_reg_winclass(QWidget *w)        // register window class
     }
     wc.hCursor      = 0;
 #ifndef Q_WS_WINCE
-    wc.hbrBackground = (HBRUSH)GetSysColorBrush(COLOR_WINDOW);
+    wc.hbrBackground = qt_widget_private(w)->isGLWidget ? 0 : (HBRUSH)GetSysColorBrush(COLOR_WINDOW);
 #else
     wc.hbrBackground = 0;
 #endif
@@ -3616,13 +3620,19 @@ bool QETWidget::translatePaintEvent(const MSG &msg)
         return true;
 
     setAttribute(Qt::WA_PendingUpdate, false);
-    const QRegion dirtyInBackingStore(qt_dirtyRegion(this));
-    // Make sure the invalidated region contains the region we're about to repaint.
-    // BeginPaint will set the clip to the invalidated region and it is impossible
-    // to enlarge it afterwards (only shrink it). Using GetDCEx is not suffient
-    // as it may return an invalid context (especially on Windows Vista).
-    if (!dirtyInBackingStore.isEmpty())
-        InvalidateRgn(internalWinId(), dirtyInBackingStore.handle(), false);
+
+    if (d_func()->isGLWidget) {
+        if (d_func()->usesDoubleBufferedGLContext)
+            InvalidateRect(internalWinId(), 0, false);
+    } else {
+        const QRegion dirtyInBackingStore(qt_dirtyRegion(this));
+        // Make sure the invalidated region contains the region we're about to repaint.
+        // BeginPaint will set the clip to the invalidated region and it is impossible
+        // to enlarge it afterwards (only shrink it). Using GetDCEx is not suffient
+        // as it may return an invalid context (especially on Windows Vista).
+        if (!dirtyInBackingStore.isEmpty())
+            InvalidateRgn(internalWinId(), dirtyInBackingStore.handle(), false);
+    }
     PAINTSTRUCT ps;
     d_func()->hd = BeginPaint(internalWinId(), &ps);
 
diff --git a/src/gui/kernel/qwidget.cpp b/src/gui/kernel/qwidget.cpp
index c072d9d..2a19d23 100644
--- a/src/gui/kernel/qwidget.cpp
+++ b/src/gui/kernel/qwidget.cpp
@@ -192,6 +192,7 @@ QWidgetPrivate::QWidgetPrivate(int version)
       , inDirtyList(0)
       , isScrolled(0)
       , isMoved(0)
+      , isGLWidget(0)
       , usesDoubleBufferedGLContext(0)
 #if defined(Q_WS_X11)
       , picture(0)
@@ -200,7 +201,6 @@ QWidgetPrivate::QWidgetPrivate(int version)
       , nativeGesturePanEnabled(0)
 #elif defined(Q_WS_MAC)
       , needWindowChange(0)
-      , isGLWidget(0)
       , window_event(0)
       , qd_hd(0)
 #endif
diff --git a/src/gui/kernel/qwidget_p.h b/src/gui/kernel/qwidget_p.h
index 4b62074..b421d30 100644
--- a/src/gui/kernel/qwidget_p.h
+++ b/src/gui/kernel/qwidget_p.h
@@ -683,6 +683,7 @@ public:
     uint inDirtyList : 1;
     uint isScrolled : 1;
     uint isMoved : 1;
+    uint isGLWidget : 1;
     uint usesDoubleBufferedGLContext : 1;
 
     // *************************** Platform specific ************************************
@@ -714,7 +715,6 @@ public:
 #elif defined(Q_WS_MAC) // <--------------------------------------------------------- MAC
     // This is new stuff
     uint needWindowChange : 1;
-    uint isGLWidget : 1;
 
     // Each wiget keeps a list of all its child and grandchild OpenGL widgets.
     // This list is used to update the gl context whenever a parent and a granparent
diff --git a/src/gui/painting/qpainter.cpp b/src/gui/painting/qpainter.cpp
index bf12c6b..3bcaf8c 100644
--- a/src/gui/painting/qpainter.cpp
+++ b/src/gui/painting/qpainter.cpp
@@ -1986,12 +1986,25 @@ QPaintEngine *QPainter::paintEngine() const
     endNativePainting().
 
     Note that only the states the underlying paint engine changes will be reset
-    to their respective default states. If, for example, the OpenGL polygon
-    mode is changed by the user inside a beginNativePaint()/endNativePainting()
-    block, it will not be reset to the default state by endNativePainting().
+    to their respective default states. The states we reset may change from
+    release to release. The following states are currently reset in the OpenGL
+    2 engine:
 
-    Here is an example that shows intermixing of painter commands
-    and raw OpenGL commands:
+    \list
+    \i blending is disabled
+    \i the depth, stencil and scissor tests are disabled
+    \i the active texture unit is reset to 0
+    \i the depth mask, depth function and the clear depth are reset to their
+    default values
+    \i the stencil mask, stencil operation and stencil function are reset to
+    their default values
+     \i the current color is reset to solid white
+    \endlist
+
+    If, for example, the OpenGL polygon mode is changed by the user inside a
+    beginNativePaint()/endNativePainting() block, it will not be reset to the
+    default state by endNativePainting(). Here is an example that shows
+    intermixing of painter commands and raw OpenGL commands:
 
     \snippet doc/src/snippets/code/src_gui_painting_qpainter.cpp 21
 
diff --git a/src/gui/widgets/qlinecontrol.cpp b/src/gui/widgets/qlinecontrol.cpp
index b0a64ea..db099e8 100644
--- a/src/gui/widgets/qlinecontrol.cpp
+++ b/src/gui/widgets/qlinecontrol.cpp
@@ -1371,6 +1371,8 @@ bool QLineControl::processEvent(QEvent* ev)
             processInputMethodEvent(static_cast<QInputMethodEvent*>(ev)); break;
 #ifndef QT_NO_SHORTCUT
         case QEvent::ShortcutOverride:{
+            if (isReadOnly())
+                return false;
             QKeyEvent* ke = static_cast<QKeyEvent*>(ev);
             if (ke == QKeySequence::Copy
                 || ke == QKeySequence::Paste
diff --git a/src/opengl/qgl_mac.mm b/src/opengl/qgl_mac.mm
index c01575b..4d7532e 100644
--- a/src/opengl/qgl_mac.mm
+++ b/src/opengl/qgl_mac.mm
@@ -951,8 +951,6 @@ void QGLWidgetPrivate::init(QGLContext *context, const QGLWidget *shareWidget)
             break;
         current = current->parentWidget();
     }
-
-    isGLWidget = 1;
 }
 
 bool QGLWidgetPrivate::renderCxPm(QPixmap*)
diff --git a/src/opengl/qgl_p.h b/src/opengl/qgl_p.h
index 713b067..da0887e 100644
--- a/src/opengl/qgl_p.h
+++ b/src/opengl/qgl_p.h
@@ -179,7 +179,9 @@ public:
 #if defined(Q_WS_X11) && defined(QT_OPENGL_ES)
                        , eglSurfaceWindowId(0)
 #endif
-        {}
+    {
+        isGLWidget = 1;
+    }
 
     ~QGLWidgetPrivate() {}
 
diff --git a/src/opengl/qglpixmapfilter.cpp b/src/opengl/qglpixmapfilter.cpp
index 37bb7c0..d5a11d9 100644
--- a/src/opengl/qglpixmapfilter.cpp
+++ b/src/opengl/qglpixmapfilter.cpp
@@ -394,6 +394,7 @@ void QGLBlurTextureCache::insertBlurTextureInfo(const QPixmap &pixmap, QGLBlurTe
     static bool hookAdded = false;
     if (!hookAdded) {
         QImagePixmapCleanupHooks::instance()->addPixmapDataDestructionHook(pixmapDestroyed);
+        QImagePixmapCleanupHooks::instance()->addPixmapDataModificationHook(pixmapDestroyed);
         hookAdded = true;
     }
 
diff --git a/src/qt3support/dialogs/q3filedialog.cpp b/src/qt3support/dialogs/q3filedialog.cpp
index 9b8e4d3..35f7890 100644
--- a/src/qt3support/dialogs/q3filedialog.cpp
+++ b/src/qt3support/dialogs/q3filedialog.cpp
@@ -475,9 +475,17 @@ static int sortFilesBy = (int)QDir::Name;
 static bool sortAscending = true;
 static bool detailViewMode = false;
 
-static Q3CleanupHandler<QPixmap> qfd_cleanup_pixmap;
 static Q3CleanupHandler<QString> qfd_cleanup_string;
 
+static void qt_cleanup_fd_pixmaps();
+typedef QList<QPixmap *> FDPixmaps;
+Q_GLOBAL_STATIC_WITH_INITIALIZER(FDPixmaps, qfd_pixmaps, qAddPostRoutine(qt_cleanup_fd_pixmaps))
+
+static void qt_cleanup_fd_pixmaps()
+{
+    qDeleteAll(*qfd_pixmaps());
+}
+
 static QString toRootIfNotExists( const QString &path )
 {
     if ( !path.isEmpty() )
@@ -533,37 +541,37 @@ static void makeVariables() {
         qfd_cleanup_string.add(&workingDirectory);
 
         openFolderIcon = new QPixmap((const char **)open_xpm);
-        qfd_cleanup_pixmap.add(&openFolderIcon);
+        qfd_pixmaps()->append(openFolderIcon);
         symLinkDirIcon = new QPixmap((const char **)link_dir_xpm);
-        qfd_cleanup_pixmap.add(&symLinkDirIcon);
+        qfd_pixmaps()->append(symLinkDirIcon);
         symLinkFileIcon = new QPixmap((const char **)link_file_xpm);
-        qfd_cleanup_pixmap.add(&symLinkFileIcon);
+        qfd_pixmaps()->append(symLinkFileIcon);
         fileIcon = new QPixmap((const char **)file_xpm);
-        qfd_cleanup_pixmap.add(&fileIcon);
+        qfd_pixmaps()->append(fileIcon);
         closedFolderIcon = new QPixmap((const char **)closed_xpm);
-        qfd_cleanup_pixmap.add(&closedFolderIcon);
+        qfd_pixmaps()->append(closedFolderIcon);
         detailViewIcon = new QPixmap((const char **)detailedview_xpm);
-        qfd_cleanup_pixmap.add(&detailViewIcon);
+        qfd_pixmaps()->append(detailViewIcon);
         multiColumnListViewIcon = new QPixmap((const char **)mclistview_xpm);
-        qfd_cleanup_pixmap.add(&multiColumnListViewIcon);
+        qfd_pixmaps()->append(multiColumnListViewIcon);
         cdToParentIcon = new QPixmap((const char **)cdtoparent_xpm);
-        qfd_cleanup_pixmap.add(&cdToParentIcon);
+        qfd_pixmaps()->append(cdToParentIcon);
         newFolderIcon = new QPixmap((const char **)newfolder_xpm);
-        qfd_cleanup_pixmap.add(&newFolderIcon);
+        qfd_pixmaps()->append(newFolderIcon);
         previewInfoViewIcon
             = new QPixmap((const char **)previewinfoview_xpm);
-        qfd_cleanup_pixmap.add(&previewInfoViewIcon);
+        qfd_pixmaps()->append(previewInfoViewIcon);
         previewContentsViewIcon
             = new QPixmap((const char **)previewcontentsview_xpm);
-        qfd_cleanup_pixmap.add(&previewContentsViewIcon);
+        qfd_pixmaps()->append(previewContentsViewIcon);
         startCopyIcon = new QPixmap((const char **)start_xpm);
-        qfd_cleanup_pixmap.add(&startCopyIcon);
+        qfd_pixmaps()->append(startCopyIcon);
         endCopyIcon = new QPixmap((const char **)end_xpm);
-        qfd_cleanup_pixmap.add(&endCopyIcon);
+        qfd_pixmaps()->append(endCopyIcon);
         goBackIcon = new QPixmap((const char **)back_xpm);
-        qfd_cleanup_pixmap.add(&goBackIcon);
+        qfd_pixmaps()->append(goBackIcon);
         fifteenTransparentPixels = new QPixmap(closedFolderIcon->width(), 1);
-        qfd_cleanup_pixmap.add(&fifteenTransparentPixels);
+        qfd_pixmaps()->append(fifteenTransparentPixels);
         QBitmap m(fifteenTransparentPixels->width(), 1);
         m.fill(Qt::color0);
         fifteenTransparentPixels->setMask(m);
diff --git a/src/qt3support/itemviews/q3iconview.cpp b/src/qt3support/itemviews/q3iconview.cpp
index 67c956e..683e3d6 100644
--- a/src/qt3support/itemviews/q3iconview.cpp
+++ b/src/qt3support/itemviews/q3iconview.cpp
@@ -132,14 +132,21 @@ static QPixmap *qiv_selection = 0;
 #endif
 static bool optimize_layout = false;
 
-static Q3CleanupHandler<QPixmap> qiv_cleanup_pixmap;
 
+static void qt_cleanup_iv_pixmaps();
+typedef QList<QPixmap *> IVPixmaps;
+Q_GLOBAL_STATIC_WITH_INITIALIZER(IVPixmaps, qiv_pixmaps, qAddPostRoutine(qt_cleanup_iv_pixmaps))
+
+static void qt_cleanup_iv_pixmaps()
+{
+    qDeleteAll(*qiv_pixmaps());
+}
 
 static QPixmap *get_qiv_buffer_pixmap(const QSize &s)
 {
     if (!qiv_buffer_pixmap) {
         qiv_buffer_pixmap = new QPixmap(s);
-        qiv_cleanup_pixmap.add(&qiv_buffer_pixmap);
+        qiv_pixmaps()->append(qiv_buffer_pixmap);
         return qiv_buffer_pixmap;
     }
 
@@ -2580,7 +2587,7 @@ Q3IconView::Q3IconView(QWidget *parent, const char *name, Qt::WindowFlags f)
 {
     if (!unknown_icon) {
         unknown_icon = new QPixmap((const char **)unknown_xpm);
-        qiv_cleanup_pixmap.add(&unknown_icon);
+        qiv_pixmaps()->append(unknown_icon);
     }
 
     d = new Q3IconViewPrivate;
diff --git a/src/qt3support/itemviews/q3listview.cpp b/src/qt3support/itemviews/q3listview.cpp
index 2c15ad0..12dad84 100644
--- a/src/qt3support/itemviews/q3listview.cpp
+++ b/src/qt3support/itemviews/q3listview.cpp
@@ -70,9 +70,6 @@ QT_BEGIN_NAMESPACE
 
 const int Unsorted = 16383;
 
-static Q3CleanupHandler<QBitmap> qlv_cleanup_bitmap;
-
-
 struct Q3ListViewPrivate
 {
     // classes that are here to avoid polluting the global name space
diff --git a/src/sql/drivers/odbc/qsql_odbc.cpp b/src/sql/drivers/odbc/qsql_odbc.cpp
index 2049a76..4d3663e 100644
--- a/src/sql/drivers/odbc/qsql_odbc.cpp
+++ b/src/sql/drivers/odbc/qsql_odbc.cpp
@@ -144,6 +144,7 @@ public:
 
     QSqlRecord rInf;
     QVector<QVariant> fieldCache;
+    QVector<wchar_t *> paramCache;
     int fieldCacheIdx;
     int disconnectCount;
     bool hasSQLFetchScroll;
@@ -202,7 +203,7 @@ static QString qWarnODBCHandle(int handleType, SQLHANDLE handle, int *nativeCode
                 *nativeCode = nativeCode_;
             QString tmpstore;
 #ifdef UNICODE
-            tmpstore = QString((const QChar*)description_.data(), msgLen);
+            tmpstore = QString::fromWCharArray((const wchar_t*)description_, msgLen);
 #else
             tmpstore = QString::fromLocal8Bit((const char*)description_.data(), msgLen);
 #endif
@@ -332,7 +333,7 @@ static QString qGetStringData(SQLHANDLE hStmt, int column, int colSize, bool uni
     } else {
         colSize++; // make sure there is room for more than the 0 termination
         if (unicode) {
-            colSize *= 2; // a tiny bit faster, since it saves a SQLGetData() call
+            colSize *= sizeof(wchar_t); // a tiny bit faster, since it saves a SQLGetData() call
         }
     }
     QVarLengthArray<char> buf(colSize);
@@ -353,9 +354,9 @@ static QString qGetStringData(SQLHANDLE hStmt, int column, int colSize, bool uni
             // contain the number of bytes returned - it contains the
             // total number of bytes that CAN be fetched
             // colSize-1: remove 0 termination when there is more data to fetch
-            int rSize = (r == SQL_SUCCESS_WITH_INFO) ? (unicode ? colSize-2 : colSize-1) : lengthIndicator;
+            int rSize = (r == SQL_SUCCESS_WITH_INFO) ? (unicode ? colSize-sizeof(wchar_t) : colSize-1) : lengthIndicator;
             if (unicode) {
-                fieldVal += QString((const QChar*) buf.constData(), rSize / 2);
+                fieldVal += QString::fromWCharArray((wchar_t*)buf.constData(), rSize / sizeof(wchar_t));
             } else {
                 fieldVal += QString::fromAscii(buf.constData(), rSize);
             }
@@ -551,7 +552,7 @@ static QSqlField qMakeFieldInfo(const QODBCPrivate* p, int i )
     }
 
 #ifdef UNICODE
-    QString qColName((const QChar*)colName, colNameLen);
+    QString qColName = QString::fromWCharArray((const wchar_t*)colName, colNameLen);
 #else
     QString qColName = QString::fromLocal8Bit((const char*)colName);
 #endif
@@ -1270,9 +1271,12 @@ bool QODBCResult::exec()
 
     // bind parameters - only positional binding allowed
     QVector<QVariant>& values = boundValues();
+    QVector<wchar_t *> wcharstorage;
+
     int i;
     SQLRETURN r;
     for (i = 0; i < values.count(); ++i) {
+        wcharstorage.append(NULL);
         if (bindValueType(i) & QSql::Out)
             values[i].detach();
         const QVariant &val = values.at(i);
@@ -1435,13 +1439,14 @@ bool QODBCResult::exec()
 #ifndef Q_ODBC_VERSION_2
                 if (d->unicode) {
                     QString str = val.toString();
-                    str.utf16();
+                    int strSize = str.length() * sizeof(wchar_t);
                     if (*ind != SQL_NULL_DATA)
-                        *ind = str.length() * sizeof(QChar);
-                    int strSize = str.length() * sizeof(QChar);
+                        *ind = strSize;
 
                     if (bindValueType(i) & QSql::Out) {
-                        QByteArray ba((char*)str.constData(), str.capacity() * sizeof(QChar));
+                        wchar_t *temp=new wchar_t[str.capacity()*sizeof(wchar_t)];
+                        str.toWCharArray(temp);
+                        QByteArray ba((char*)temp, str.capacity() * sizeof(wchar_t));
                         r = SQLBindParameter(d->hStmt,
                                             i + 1,
                                             qParamType[(QFlag)(bindValueType(i)) & QSql::InOut],
@@ -1453,9 +1458,13 @@ bool QODBCResult::exec()
                                             ba.size(),
                                             ind);
                         tmpStorage.append(ba);
+                        wcharstorage.replace(i,temp);
                         break;
                     }
 
+                    wchar_t *temp=new wchar_t[(1+str.length())*sizeof(wchar_t)];
+                    str.toWCharArray(temp);
+                    temp[str.length()]=0;
                     r = SQLBindParameter(d->hStmt,
                                           i + 1,
                                           qParamType[(QFlag)(bindValueType(i)) & QSql::InOut],
@@ -1463,9 +1472,10 @@ bool QODBCResult::exec()
                                           strSize > 254 ? SQL_WLONGVARCHAR : SQL_WVARCHAR,
                                           strSize,
                                           0,
-                                          (void *)str.constData(),
+                                          (void *)temp,
                                           strSize,
                                           ind);
+                    wcharstorage.replace(i,temp);
                     break;
                 }
                 else
@@ -1515,6 +1525,13 @@ bool QODBCResult::exec()
         }
     }
     r = SQLExecute(d->hStmt);
+
+    for(int i=0;i<wcharstorage.size();i++)
+    {
+        if(wcharstorage.at(i))
+            delete [](wcharstorage.at(i));
+    }
+
     if (r != SQL_SUCCESS && r != SQL_SUCCESS_WITH_INFO) {
         qWarning() << "QODBCResult::exec: Unable to execute statement:" << qODBCWarn(d);
         setLastError(qMakeError(QCoreApplication::translate("QODBCResult",
diff --git a/src/sql/drivers/sqlite/qsql_sqlite.cpp b/src/sql/drivers/sqlite/qsql_sqlite.cpp
index 9fff552..d3be304 100644
--- a/src/sql/drivers/sqlite/qsql_sqlite.cpp
+++ b/src/sql/drivers/sqlite/qsql_sqlite.cpp
@@ -500,32 +500,6 @@ bool QSQLiteDriver::hasFeature(DriverFeature f) const
     return false;
 }
 
-static int qGetSqliteTimeout(QString opts)
-{
-    enum { DefaultTimeout = 5000 };
-
-    opts.remove(QLatin1Char(' '));
-    foreach(QString option, opts.split(QLatin1Char(';'))) {
-        if (option.startsWith(QLatin1String("QSQLITE_BUSY_TIMEOUT="))) {
-            bool ok;
-            int nt = option.mid(21).toInt(&ok);
-            if (ok)
-                return nt;
-        }
-    }
-    return DefaultTimeout;
-}
-
-static int qGetSqliteOpenMode(QString opts)
-{
-    opts.remove(QLatin1Char(' '));
-    foreach(QString option, opts.split(QLatin1Char(';'))) {
-        if (option == QLatin1String("QSQLITE_OPEN_READONLY"))
-                return SQLITE_OPEN_READONLY;
-    }
-    return SQLITE_OPEN_READWRITE | SQLITE_OPEN_CREATE;
-}
-
 /*
    SQLite dbs have no user name, passwords, hosts or ports.
    just file names.
@@ -537,9 +511,26 @@ bool QSQLiteDriver::open(const QString & db, const QString &, const QString &, c
 
     if (db.isEmpty())
         return false;
+    bool sharedCache = false;
+    int openMode = SQLITE_OPEN_READWRITE | SQLITE_OPEN_CREATE, timeOut=5000;
+    QStringList opts=QString(conOpts).remove(QLatin1Char(' ')).split(QLatin1Char(';'));
+    foreach(const QString &option, opts) {
+        if (option.startsWith(QLatin1String("QSQLITE_BUSY_TIMEOUT="))) {
+            bool ok;
+            int nt = option.mid(21).toInt(&ok);
+            if (ok)
+                timeOut = nt;
+        }
+        if (option == QLatin1String("QSQLITE_OPEN_READONLY"))
+            openMode = SQLITE_OPEN_READONLY;
+        if (option == QLatin1String("QSQLITE_ENABLE_SHARED_CACHE"))
+            sharedCache = true;
+    }
+
+    sqlite3_enable_shared_cache(sharedCache);
 
-    if (sqlite3_open_v2(db.toUtf8().constData(), &d->access, qGetSqliteOpenMode(conOpts), NULL) == SQLITE_OK) {
-        sqlite3_busy_timeout(d->access, qGetSqliteTimeout(conOpts));
+    if (sqlite3_open_v2(db.toUtf8().constData(), &d->access, openMode, NULL) == SQLITE_OK) {
+        sqlite3_busy_timeout(d->access, timeOut);
         setOpen(true);
         setOpenError(false);
         return true;
diff --git a/src/sql/kernel/qsqldatabase.cpp b/src/sql/kernel/qsqldatabase.cpp
index 031261d..1416ee3 100644
--- a/src/sql/kernel/qsqldatabase.cpp
+++ b/src/sql/kernel/qsqldatabase.cpp
@@ -1267,6 +1267,7 @@ QSqlRecord QSqlDatabase::record(const QString& tablename) const
     \list
     \i QSQLITE_BUSY_TIMEOUT
     \i QSQLITE_OPEN_READONLY
+    \i QSQLITE_ENABLE_SHARED_CACHE
     \endlist
 
     \i