5 files changed, 16 insertions, 12 deletions

diff --git a/src/widgets/kernel/qapplication.cpp b/src/widgets/kernel/qapplication.cpp
index b94aa826d3..89eff898fe 100644
--- a/src/widgets/kernel/qapplication.cpp
+++ b/src/widgets/kernel/qapplication.cpp
@@ -4160,13 +4160,10 @@ void QApplication::beep()
     \relates QApplication
 
     A global pointer referring to the unique application object. It is
-    equivalent to the pointer returned by the QCoreApplication::instance()
-    function except that, in GUI applications, it is a pointer to a
-    QApplication instance.
+    equivalent to QCoreApplication::instance(), but cast as a QApplication pointer,
+    so only valid when the unique application object is a QApplication.
 
-    Only one application object can be created.
-
-    \sa QCoreApplication::instance()
+    \sa QCoreApplication::instance(), qGuiApp
 */
 
 /*!
diff --git a/src/widgets/kernel/qwidget.cpp b/src/widgets/kernel/qwidget.cpp
index c7026781b5..dc04bfb632 100644
--- a/src/widgets/kernel/qwidget.cpp
+++ b/src/widgets/kernel/qwidget.cpp
@@ -809,6 +809,10 @@ void QWidget::setAutoFillBackground(bool enabled)
         parentWidget(), window(), setParent(), winId(),
         find(), metric().
 
+    \row \li Context menu \li
+       contextMenuPolicy, contextMenuEvent(),
+       customContextMenuRequested(), actions()
+
     \row \li Interactive help \li
         setToolTip(), setWhatsThis()
 
diff --git a/src/widgets/kernel/qwidget_p.h b/src/widgets/kernel/qwidget_p.h
index 2720c0dc31..68e063c25a 100644
--- a/src/widgets/kernel/qwidget_p.h
+++ b/src/widgets/kernel/qwidget_p.h
@@ -402,9 +402,6 @@ public:
                                 const QRegion &rgn, const QPoint &offset, int flags,
                                 QPainter *sharedPainter, QWidgetBackingStore *backingStore);
 
-
-    QPainter *beginSharedPainter();
-    bool endSharedPainter();
 #ifndef QT_NO_GRAPHICSVIEW
     static QGraphicsProxyWidget * nearestGraphicsProxyWidget(const QWidget *origin);
 #endif
diff --git a/src/widgets/kernel/qwidgetbackingstore.cpp b/src/widgets/kernel/qwidgetbackingstore.cpp
index a10c88308c..910704498c 100644
--- a/src/widgets/kernel/qwidgetbackingstore.cpp
+++ b/src/widgets/kernel/qwidgetbackingstore.cpp
@@ -112,6 +112,7 @@ void QWidgetBackingStore::qt_flush(QWidget *widget, const QRegion &region, QBack
     if (widget != tlw)
         offset += widget->mapTo(tlw, QPoint());
 
+    QRegion effectiveRegion = region;
 #ifndef QT_NO_OPENGL
     const bool compositionWasActive = widget->d_func()->renderToTextureComposeActive;
     if (!widgetTextures) {
@@ -125,6 +126,11 @@ void QWidgetBackingStore::qt_flush(QWidget *widget, const QRegion &region, QBack
     } else {
         widget->d_func()->renderToTextureComposeActive = true;
     }
+    // When changing the composition status, make sure the dirty region covers
+    // the entire widget.  Just having e.g. the shown/hidden render-to-texture
+    // widget's area marked as dirty is incorrect when changing flush paths.
+    if (compositionWasActive != widget->d_func()->renderToTextureComposeActive)
+        effectiveRegion = widget->rect();
 
     // re-test since we may have been forced to this path via the dummy texture list above
     if (widgetTextures) {
@@ -136,12 +142,12 @@ void QWidgetBackingStore::qt_flush(QWidget *widget, const QRegion &region, QBack
         const bool translucentBackground = widget->testAttribute(Qt::WA_TranslucentBackground);
         // Use the tlw's context, not widget's. The difference is important with native child
         // widgets where tlw != widget.
-        backingStore->handle()->composeAndFlush(widget->windowHandle(), region, offset, widgetTextures,
+        backingStore->handle()->composeAndFlush(widget->windowHandle(), effectiveRegion, offset, widgetTextures,
                                                 tlw->d_func()->shareContext(), translucentBackground);
         widget->window()->d_func()->sendComposeStatus(widget->window(), true);
     } else
 #endif
-        backingStore->flush(region, widget->windowHandle(), offset);
+        backingStore->flush(effectiveRegion, widget->windowHandle(), offset);
 }
 
 #ifndef QT_NO_PAINT_DEBUG
diff --git a/src/widgets/kernel/qwidgetwindow.cpp b/src/widgets/kernel/qwidgetwindow.cpp
index f3fbe13763..3e15b6977a 100644
--- a/src/widgets/kernel/qwidgetwindow.cpp
+++ b/src/widgets/kernel/qwidgetwindow.cpp
@@ -535,7 +535,7 @@ void QWidgetWindow::handleMouseEvent(QMouseEvent *event)
                     // activate window of the widget under mouse pointer
                     if (!w->isActiveWindow()) {
                         w->activateWindow();
-                        w->raise();
+                        w->window()->raise();
                     }
 
                     QWindow *win = w->windowHandle();