Add parent toolbar information to style info structs

src/kernel/qstyle.h

@@ -178,6 +178,11 @@ class QStyleControlElementDockWidgetData {
 		Qt::Orientation areaOrientation;
 };
 
+class QStyleControlElementToolBarWidgetData {
+	public:
+		Qt::Orientation orientation;
+};
+
 class QStyleControlElementGenericWidgetData {
 	public:
 		QStringList widgetObjectTypes;
@@ -270,6 +275,7 @@ class Q_EXPORT QStyleControlElementData {
 		Q_UINT32 frameStyle;
 		QRect sliderRect;
 		QPainter* activePainter;
+		QStyleControlElementToolBarWidgetData toolBarData;
 
 	public:
 		QStyleControlElementData();

src/styles/qcommonstyle.cpp

@@ -576,6 +576,10 @@ QStyleControlElementData populateControlElementDataFromWidget(const QWidget* wid
 				}
 				ceData.dwData.closeEnabled = dw->isCloseEnabled();
 			}
+			const QToolBar * toolbar = dynamic_cast<const QToolBar*>(parentWidget);
+			if (toolbar) {
+				ceData.toolBarData.orientation = toolbar->orientation();
+			}
 		}
 
 		QCheckListItem *item = opt.checkListItem();