5 files changed, 21 insertions, 9 deletions

diff --git a/src/gui/embedded/qscreen_qws.cpp b/src/gui/embedded/qscreen_qws.cpp
index 8eb8123..9bd73a4 100644
--- a/src/gui/embedded/qscreen_qws.cpp
+++ b/src/gui/embedded/qscreen_qws.cpp
@@ -2739,7 +2739,7 @@ void QScreen::compose(int level, const QRegion &exposed, QRegion &blend,
             default:
                 break;
             }
-            spanData.setup(qwsServer->backgroundBrush(), 256, QPainter::CompositionMode_SourceOver);
+            spanData.setup(qwsServer->backgroundBrush(), 256, QPainter::CompositionMode_Source);
             spanData.dx = off.x();
             spanData.dy = off.y();
         } else if (!surface->isBuffered()) {
diff --git a/src/gui/graphicsview/qgraphicsview.cpp b/src/gui/graphicsview/qgraphicsview.cpp
index 1ced3d7..a767987 100644
--- a/src/gui/graphicsview/qgraphicsview.cpp
+++ b/src/gui/graphicsview/qgraphicsview.cpp
@@ -3360,12 +3360,6 @@ void QGraphicsView::paintEvent(QPaintEvent *event)
             backgroundPainter.setClipRegion(d->backgroundPixmapExposed, Qt::ReplaceClip);
             if (viewTransformed)
                 backgroundPainter.setTransform(viewTransform);
-#ifdef Q_WS_X11
-#undef X11
-            if (backgroundPainter.paintEngine()->type() != QPaintEngine::X11)
-#define X11 qt_x11Data
-#endif
-                backgroundPainter.setCompositionMode(QPainter::CompositionMode_Source);
             QRectF backgroundExposedSceneRect = mapToScene(d->backgroundPixmapExposed.boundingRect()).boundingRect();
             drawBackground(&backgroundPainter, backgroundExposedSceneRect);
             d->backgroundPixmapExposed = QRegion();
diff --git a/src/gui/image/qimagepixmapcleanuphooks.cpp b/src/gui/image/qimagepixmapcleanuphooks.cpp
index 517fcb0..521e348 100644
--- a/src/gui/image/qimagepixmapcleanuphooks.cpp
+++ b/src/gui/image/qimagepixmapcleanuphooks.cpp
@@ -96,6 +96,11 @@ void QImagePixmapCleanupHooks::removeImageHook(_qt_image_cleanup_hook_64 hook)
 void QImagePixmapCleanupHooks::executePixmapDataModificationHooks(QPixmapData* pmd)
 {
     QImagePixmapCleanupHooks *h = qt_image_and_pixmap_cleanup_hooks();
+    // the global destructor for the pixmap and image hooks might have
+    // been called already if the app is "leaking" global
+    // pixmaps/images
+    if (!h)
+        return;
     for (int i = 0; i < h->pixmapModificationHooks.count(); ++i)
         h->pixmapModificationHooks[i](pmd);
 
@@ -106,6 +111,11 @@ void QImagePixmapCleanupHooks::executePixmapDataModificationHooks(QPixmapData* p
 void QImagePixmapCleanupHooks::executePixmapDataDestructionHooks(QPixmapData* pmd)
 {
     QImagePixmapCleanupHooks *h = qt_image_and_pixmap_cleanup_hooks();
+    // the global destructor for the pixmap and image hooks might have
+    // been called already if the app is "leaking" global
+    // pixmaps/images
+    if (!h)
+        return;
     for (int i = 0; i < h->pixmapDestructionHooks.count(); ++i)
         h->pixmapDestructionHooks[i](pmd);
 
diff --git a/src/gui/kernel/qapplication_x11.cpp b/src/gui/kernel/qapplication_x11.cpp
index 121e9ec..25a7750 100644
--- a/src/gui/kernel/qapplication_x11.cpp
+++ b/src/gui/kernel/qapplication_x11.cpp
@@ -320,9 +320,14 @@ static const char * x11_atomnames = {
     "_XEMBED\0"
     "_XEMBED_INFO\0"
 
+    // Wacom old. (before version 0.10)
     "Wacom Stylus\0"
     "Wacom Cursor\0"
     "Wacom Eraser\0"
+
+    // Tablet
+    "STYLUS\0"
+    "ERASER\0"
 };
 
 Q_GUI_EXPORT QX11Data *qt_x11Data = 0;
@@ -2366,12 +2371,12 @@ void qt_init(QApplicationPrivate *priv, int,
                     gotStylus = true;
                 }
 #else
-                if (devs->type == ATOM(XWacomStylus)) {
+                if (devs->type == ATOM(XWacomStylus) || devs->type == ATOM(XTabletStylus)) {
                     deviceType = QTabletEvent::Stylus;
                     if (wacomDeviceName()->isEmpty())
                         wacomDeviceName()->append(devs->name);
                     gotStylus = true;
-                } else if (devs->type == ATOM(XWacomEraser)) {
+                } else if (devs->type == ATOM(XWacomEraser) || devs->type == ATOM(XTabletEraser)) {
                     deviceType = QTabletEvent::XFreeEraser;
                     gotEraser = true;
                 }
diff --git a/src/gui/kernel/qt_x11_p.h b/src/gui/kernel/qt_x11_p.h
index d110084..14e04bb 100644
--- a/src/gui/kernel/qt_x11_p.h
+++ b/src/gui/kernel/qt_x11_p.h
@@ -675,6 +675,9 @@ struct QX11Data
         XWacomCursor,
         XWacomEraser,
 
+        XTabletStylus,
+        XTabletEraser,
+
         NPredefinedAtoms,
 
         _QT_SETTINGS_TIMESTAMP = NPredefinedAtoms,