diff options
Diffstat (limited to 'src/gui/kernel/qapplication_s60.cpp')
| -rw-r--r-- | src/gui/kernel/qapplication_s60.cpp | 24 |
1 files changed, 16 insertions, 8 deletions
diff --git a/src/gui/kernel/qapplication_s60.cpp b/src/gui/kernel/qapplication_s60.cpp index b1e0f63d0f..78027b2752 100644 --- a/src/gui/kernel/qapplication_s60.cpp +++ b/src/gui/kernel/qapplication_s60.cpp @@ -1703,19 +1703,27 @@ int QApplicationPrivate::symbianProcessWsEvent(const QSymbianEvent *symbianEvent return 1; const TWsVisibilityChangedEvent *visChangedEvent = event->VisibilityChanged(); QWidget *w = QWidgetPrivate::mapper->value(control); - if (!w->d_func()->maybeTopData()) + QWidget *const window = w->window(); + if (!window->d_func()->maybeTopData()) break; + QRefCountedWidgetBackingStore &backingStore = window->d_func()->maybeTopData()->backingStore; if (visChangedEvent->iFlags & TWsVisibilityChangedEvent::ENotVisible) { - delete w->d_func()->topData()->backingStore; - w->d_func()->topData()->backingStore = 0; + // Decrement backing store reference count + backingStore.deref(); // In order to ensure that any resources used by the window surface // are immediately freed, we flush the WSERV command buffer. S60->wsSession().Flush(); - } else if ((visChangedEvent->iFlags & TWsVisibilityChangedEvent::EPartiallyVisible) - && !w->d_func()->maybeBackingStore()) { - w->d_func()->topData()->backingStore = new QWidgetBackingStore(w); - w->d_func()->invalidateBuffer(w->rect()); - w->repaint(); + } else if (visChangedEvent->iFlags & TWsVisibilityChangedEvent::EPartiallyVisible) { + if (backingStore.data()) { + // Increment backing store reference count + backingStore.ref(); + } else { + // Create backing store with an initial reference count of 1 + backingStore.create(window); + backingStore.ref(); + w->d_func()->invalidateBuffer(w->rect()); + w->repaint(); + } } return 1; } |