diff options
Diffstat (limited to 'src/widgets/kernel/qwidget.cpp')
| -rw-r--r-- | src/widgets/kernel/qwidget.cpp | 18 |
1 files changed, 12 insertions, 6 deletions
diff --git a/src/widgets/kernel/qwidget.cpp b/src/widgets/kernel/qwidget.cpp index 8e3263ad92..6b3fad6b5f 100644 --- a/src/widgets/kernel/qwidget.cpp +++ b/src/widgets/kernel/qwidget.cpp @@ -1904,19 +1904,21 @@ void QWidgetPrivate::deleteTLSysExtra() } /* - Returns \c true if there are widgets above this which overlap with + Returns \c region of widgets above this which overlap with \a rect, which is in parent's coordinate system (same as crect). */ -bool QWidgetPrivate::isOverlapped(const QRect &rect) const +QRegion QWidgetPrivate::overlappedRegion(const QRect &rect, bool breakAfterFirst) const { Q_Q(const QWidget); const QWidget *w = q; QRect r = rect; + QPoint p; + QRegion region; while (w) { if (w->isWindow()) - return false; + break; QWidgetPrivate *pd = w->parentWidget()->d_func(); bool above = false; for (int i = 0; i < pd->children.size(); ++i) { @@ -1928,19 +1930,23 @@ bool QWidgetPrivate::isOverlapped(const QRect &rect) const continue; } - if (qRectIntersects(sibling->d_func()->effectiveRectFor(sibling->data->crect), r)) { + const QRect siblingRect = sibling->d_func()->effectiveRectFor(sibling->data->crect); + if (qRectIntersects(siblingRect, r)) { const QWExtra *siblingExtra = sibling->d_func()->extra; if (siblingExtra && siblingExtra->hasMask && !sibling->d_func()->graphicsEffect && !siblingExtra->mask.translated(sibling->data->crect.topLeft()).intersects(r)) { continue; } - return true; + region += siblingRect.translated(-p); + if (breakAfterFirst) + break; } } w = w->parentWidget(); r.translate(pd->data.crect.topLeft()); + p += pd->data.crect.topLeft(); } - return false; + return region; } void QWidgetPrivate::syncBackingStore() |