3 files changed, 14 insertions, 0 deletions
diff --git a/src/widgets/graphicsview/qgraphicsitem.cpp b/src/widgets/graphicsview/qgraphicsitem.cpp
index 70b44428f2..c30435e56a 100644
--- a/src/widgets/graphicsview/qgraphicsitem.cpp
+++ b/src/widgets/graphicsview/qgraphicsitem.cpp
@@ -1315,6 +1315,14 @@ void QGraphicsItemPrivate::initStyleOption(QStyleOptionGraphicsItem *option, con
     option->rect = brect.toRect();
     option->levelOfDetail = 1;
     option->exposedRect = brect;
+
+    // Style animations require a QObject-based animation target.
+    // If a plain QGraphicsItem is used to draw animated controls,
+    // QStyle is let to send animation updates to the whole scene.
+    option->styleObject = q_ptr->toGraphicsObject();
+    if (!option->styleObject)
+        option->styleObject = scene;
+
     if (selected)
         option->state |= QStyle::State_Selected;
     if (enabled)
diff --git a/src/widgets/graphicsview/qgraphicsscene.cpp b/src/widgets/graphicsview/qgraphicsscene.cpp
index 311625761c..ee65fb8fa6 100644
--- a/src/widgets/graphicsview/qgraphicsscene.cpp
+++ b/src/widgets/graphicsview/qgraphicsscene.cpp
@@ -3432,6 +3432,11 @@ bool QGraphicsScene::event(QEvent *event)
         // geometries that do not have an explicit style set.
         update();
         break;
+    case QEvent::StyleAnimationUpdate:
+        // Because QGraphicsItem is not a QObject, QStyle driven
+        // animations are forced to update the whole scene
+        update();
+        break;
     case QEvent::TouchBegin:
     case QEvent::TouchUpdate:
     case QEvent::TouchEnd:
diff --git a/src/widgets/graphicsview/qgraphicswidget.cpp b/src/widgets/graphicsview/qgraphicswidget.cpp
index 859f07a36b..c94d027cbe 100644
--- a/src/widgets/graphicsview/qgraphicswidget.cpp
+++ b/src/widgets/graphicsview/qgraphicswidget.cpp
@@ -734,6 +734,7 @@ void QGraphicsWidget::initStyleOption(QStyleOption *option) const
         option->palette.setCurrentColorGroup(QPalette::Inactive);
     }
     option->fontMetrics = QFontMetrics(font());
+    option->styleObject = const_cast<QGraphicsWidget *>(this);
 }
 
 /*!