Ensure all children of a widget get updated when a stylesheet changes

Before, only the direct children would get an update when the stylesheet changed, any children below that would be unchanged. Fixes: QTBUG-77006 Change-Id: Id668eaae74a8289d78d66644f077e6a3302960cd Reviewed-by: Frederik Gladhorn <[email protected]>
qt · Sep 20, 2019 · 9b6179c · 9b6179c
1 parent b8a911f
commit 9b6179c
Showing 1 changed file with 5 additions and 0 deletions.
diff --git a/src/widgets/styles/qstylesheetstyle.cpp b/src/widgets/styles/qstylesheetstyle.cpp
@@ -2735,6 +2735,11 @@ static void updateObjects(const QList<const QObject *>& objects)
         if (auto widget = qobject_cast<QWidget*>(const_cast<QObject*>(object))) {
             widget->style()->polish(widget);
             QApplication::sendEvent(widget, &event);
+            QList<const QObject *> children;
+            children.reserve(widget->children().size() + 1);
+            for (auto child: qAsConst(widget->children()))
+                children.append(child);
+            updateObjects(children);
         }
     }
 }