Bugfix: verify existence of scene pointer due to unpredictable order …

…of events
emsec · Oct 11, 2023 · 26b201f · 26b201f
1 parent 2e53d94
commit 26b201f
Showing 1 changed file with 2 additions and 2 deletions.
diff --git a/plugins/gui/src/graph_widget/graph_graphics_view.cpp b/plugins/gui/src/graph_widget/graph_graphics_view.cpp
@@ -500,7 +500,7 @@ namespace hal
     void GraphGraphicsView::dragLeaveEvent(QDragLeaveEvent* event)
     {
         Q_UNUSED(event)
-        static_cast<GraphicsScene*>(scene())->stopDragShadow();
+        if (scene()) static_cast<GraphicsScene*>(scene())->stopDragShadow();
     }
 
     void GraphGraphicsView::dragMoveEvent(QDragMoveEvent* event)
@@ -556,7 +556,7 @@ namespace hal
         {
             event->acceptProposedAction();
             GraphicsScene* s = static_cast<GraphicsScene*>(scene());
-            s->stopDragShadow();
+            if (s) s->stopDragShadow();
             if (mDropAllowed)
             {
                 auto context            = mGraphWidget->getContext();