1 files changed, 8 insertions, 2 deletions
diff --git a/src/widgets/kernel/qwidget_p.h b/src/widgets/kernel/qwidget_p.h
index 68e063c25a..2c397aec88 100644
--- a/src/widgets/kernel/qwidget_p.h
+++ b/src/widgets/kernel/qwidget_p.h
@@ -69,6 +69,7 @@
 #include "QtWidgets/qgraphicsscene.h"
 #include "QtWidgets/qgraphicsview.h"
 #include <private/qgesture_p.h>
+#include <qpa/qplatformbackingstore.h>
 
 QT_BEGIN_NAMESPACE
 
@@ -81,7 +82,6 @@ class QWidgetBackingStore;
 class QGraphicsProxyWidget;
 class QWidgetItemV2;
 class QOpenGLContext;
-class QPlatformTextureList;
 
 class QStyle;
 
@@ -409,7 +409,7 @@ public:
 
     QRect clipRect() const;
     QRegion clipRegion() const;
-    void setSystemClip(QPaintDevice *paintDevice, const QRegion &region);
+    void setSystemClip(QPaintEngine *paintEngine, qreal devicePixelRatio, const QRegion &region);
     void subtractOpaqueChildren(QRegion &rgn, const QRect &clipRect) const;
     void subtractOpaqueSiblings(QRegion &source, bool *hasDirtySiblingsAbove = 0,
                                 bool alsoNonOpaque = false) const;
@@ -630,6 +630,12 @@ public:
 
 #ifndef QT_NO_OPENGL
     virtual GLuint textureId() const { return 0; }
+    virtual QPlatformTextureList::Flags textureListFlags() {
+        Q_Q(QWidget);
+        return q->testAttribute(Qt::WA_AlwaysStackOnTop)
+            ? QPlatformTextureList::StacksOnTop
+            : QPlatformTextureList::Flags(0);
+    }
     virtual QImage grabFramebuffer() { return QImage(); }
     virtual void beginBackingStorePainting() { }
     virtual void endBackingStorePainting() { }