Transforms do not obey AnchorUnderMouse with viewport margins set

setTransformationAnchor(QGraphicsView::AnchorUnderMouse) would not work
properly if viewport margins were set. When centering the view in
QGraphicsViewPrivate::centerView, the viewport margins were not being taken
into account.

Mapping from global cursor coordinates in the viewport instead of the view
fixes the issue.

Task-number: 255529
Reviewed-by: Olivier

1 files changed, 2 insertions, 2 deletions

diff --git a/src/gui/graphicsview/qgraphicsview.cpp b/src/gui/graphicsview/qgraphicsview.cpp
index 7213542..91e654c 100644
--- a/src/gui/graphicsview/qgraphicsview.cpp
+++ b/src/gui/graphicsview/qgraphicsview.cpp
@@ -493,8 +493,8 @@ void QGraphicsViewPrivate::centerView(QGraphicsView::ViewportAnchor anchor)
             // Last scene pos: lastMouseMoveScenePoint
             // Current mouse pos:
             QPointF transformationDiff = q->mapToScene(viewport->rect().center())
-                                         - q->mapToScene(q->mapFromGlobal(QCursor::pos()));
-            q->centerOn(lastMouseMoveScenePoint + transformationDiff);;
+                                         - q->mapToScene(viewport->mapFromGlobal(QCursor::pos()));
+            q->centerOn(lastMouseMoveScenePoint + transformationDiff);
         } else {
             q->centerOn(lastCenterPoint);
         }