diff options
| -rw-r--r-- | src/widgets/widgets/qtabbar.cpp | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/src/widgets/widgets/qtabbar.cpp b/src/widgets/widgets/qtabbar.cpp index 3fdd6fc314..4b1a37d6e2 100644 --- a/src/widgets/widgets/qtabbar.cpp +++ b/src/widgets/widgets/qtabbar.cpp @@ -2408,9 +2408,9 @@ void QTabBar::wheelEvent(QWheelEvent *event) if (!d->rightB->isVisible()) scrollRectExtent += tabsVertical ? d->rightB->height() : d->rightB->width(); - const int maxScrollOffset = (tabsVertical ? lastTabRect.bottom() - : lastTabRect.right()) - - scrollRectExtent; + const int maxScrollOffset = qMax((tabsVertical ? + lastTabRect.bottom() : + lastTabRect.right()) - scrollRectExtent, 0); d->scrollOffset = qBound(0, d->scrollOffset - delta, maxScrollOffset); d->leftB->setEnabled(d->scrollOffset > -scrollRect.left()); d->rightB->setEnabled(maxScrollOffset > d->scrollOffset); |