QDockWidget warning log for an unexpected situation

It didn't enter the original patch because it would prevent it to be backported to 6.2 and 5.15. Pick-to: 6.3 6.4 Change-Id: I9af30b86b98d5d101b0784cf45781cf46d216c6d Reviewed-by: Qt CI Bot <[email protected]> Reviewed-by: Shawn Rutledge <[email protected]>
StrataSource · Jul 5, 2022 · d050569 · d050569
1 parent 76b07b0
commit d050569
Showing 1 changed file with 4 additions and 1 deletion.
diff --git a/src/widgets/widgets/qdockwidget.cpp b/src/widgets/widgets/qdockwidget.cpp
@@ -1002,11 +1002,14 @@ bool QDockWidgetPrivate::mouseMoveEvent(QMouseEvent *event)
 
             // Calculate new nativePos based on startPos + mouse delta move.
             const QPoint nativeNewPos = nativeWdgOrgPos + (nativeTo - nativeFrom);
-
             pos = QHighDpiScaling::mapPositionFromNative(nativeNewPos, wdgScreen->handle())
                     - windowMarginOffset;
         } else {
             // Fallback in the unlikely case that source and target screens could not be established
+            qCWarning(lcQpaDockWidgets)
+                    << "QDockWidget failed to find relevant screen info. screenFrom:" << screenFrom
+                    << "screenTo:" << screenTo << " wdgScreen:" << wdgScreen << "orgWdgScreen"
+                    << orgWdgScreen;
             pos = event->globalPosition().toPoint() - state->pressPos - windowMarginOffset;
         }