If a QGraphicsWidget gets a StyleChange event, invalidate its layout.

The layout should be invalidated because all layouts are dependent on
some style-specific defaults. (e.g. PM_LayoutHorizontalSpacing can
differ.)

Reviewed-by: alexis

1 files changed, 2 insertions, 0 deletions

diff --git a/src/gui/graphicsview/qgraphicswidget.cpp b/src/gui/graphicsview/qgraphicswidget.cpp
index 35a3c13..d70a281 100644
--- a/src/gui/graphicsview/qgraphicswidget.cpp
+++ b/src/gui/graphicsview/qgraphicswidget.cpp
@@ -1352,6 +1352,8 @@ void QGraphicsWidget::changeEvent(QEvent *event)
     case QEvent::StyleChange:
         // ### Don't unset if the margins are explicitly set.
         unsetWindowFrameMargins();
+        if (d->layout)
+            d->layout->invalidate();
     case QEvent::FontChange:
         update();
         updateGeometry();