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-rw-r--r--src/gui/kernel/qwidget.cpp16
1 files changed, 6 insertions, 10 deletions
diff --git a/src/gui/kernel/qwidget.cpp b/src/gui/kernel/qwidget.cpp
index 06d52ae..e551a1d 100644
--- a/src/gui/kernel/qwidget.cpp
+++ b/src/gui/kernel/qwidget.cpp
@@ -5046,6 +5046,8 @@ QGraphicsEffect *QWidget::graphicsEffect() const
If \a effect is the installed on a different widget, setGraphicsEffect() will remove
the effect from the widget and install it on this widget.
+ QWidget takes ownership of \a effect.
+
\note This function will apply the effect on itself and all its children.
\since 4.6
@@ -5059,28 +5061,22 @@ void QWidget::setGraphicsEffect(QGraphicsEffect *effect)
if (d->graphicsEffect == effect)
return;
- if (d->graphicsEffect && effect) {
+ if (d->graphicsEffect) {
+ d->invalidateBuffer(rect());
delete d->graphicsEffect;
d->graphicsEffect = 0;
}
- if (!effect) {
- // Unset current effect.
- QGraphicsEffectPrivate *oldEffectPrivate = d->graphicsEffect->d_func();
- d->graphicsEffect = 0;
- if (oldEffectPrivate) {
- oldEffectPrivate->setGraphicsEffectSource(0); // deletes the current source.
- }
- } else {
+ if (effect) {
// Set new effect.
QGraphicsEffectSourcePrivate *sourced = new QWidgetEffectSourcePrivate(this);
QGraphicsEffectSource *source = new QGraphicsEffectSource(*sourced);
d->graphicsEffect = effect;
effect->d_func()->setGraphicsEffectSource(source);
+ update();
}
d->updateIsOpaque();
- update();
}
#endif //QT_NO_GRAPHICSEFFECT