diff options
Diffstat (limited to 'src/gui/kernel/qwidget.cpp')
| -rw-r--r-- | src/gui/kernel/qwidget.cpp | 16 |
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 |