diff options
Diffstat (limited to 'src/gui/graphicsview/qgraphicsview.cpp')
| -rw-r--r-- | src/gui/graphicsview/qgraphicsview.cpp | 19 |
1 files changed, 16 insertions, 3 deletions
diff --git a/src/gui/graphicsview/qgraphicsview.cpp b/src/gui/graphicsview/qgraphicsview.cpp index ffe64aa..3bb40fb 100644 --- a/src/gui/graphicsview/qgraphicsview.cpp +++ b/src/gui/graphicsview/qgraphicsview.cpp @@ -1208,6 +1208,11 @@ void QGraphicsView::setTransformationAnchor(ViewportAnchor anchor) { Q_D(QGraphicsView); d->transformationAnchor = anchor; + + // Ensure mouse tracking is enabled in the case we are using AnchorUnderMouse + // in order to have up-to-date information for centering the view. + if (d->transformationAnchor == AnchorUnderMouse) + d->viewport->setMouseTracking(true); } /*! @@ -1235,6 +1240,11 @@ void QGraphicsView::setResizeAnchor(ViewportAnchor anchor) { Q_D(QGraphicsView); d->resizeAnchor = anchor; + + // Ensure mouse tracking is enabled in the case we are using AnchorUnderMouse + // in order to have up-to-date information for centering the view. + if (d->resizeAnchor == AnchorUnderMouse) + d->viewport->setMouseTracking(true); } /*! @@ -2597,9 +2607,12 @@ void QGraphicsView::setupViewport(QWidget *widget) } // We are only interested in mouse tracking if items - // accept hover events or use non-default cursors. - if (d->scene && (!d->scene->d_func()->allItemsIgnoreHoverEvents - || !d->scene->d_func()->allItemsUseDefaultCursor)) { + // accept hover events or use non-default cursors or if + // AnchorUnderMouse is used as transformation or resize anchor. + if ((d->scene && (!d->scene->d_func()->allItemsIgnoreHoverEvents + || !d->scene->d_func()->allItemsUseDefaultCursor)) + || d->transformationAnchor == AnchorUnderMouse + || d->resizeAnchor == AnchorUnderMouse) { widget->setMouseTracking(true); } |