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Cocoa: Fix QCocoaBackingStore::flush on 10.8

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The call to displayRect works on 10.7 but does not
update the pixels on screen on 10.8. Many Qt windows
do not update properly.

This is a workaround found by trail and error
without fully understanding the underlying issue.
I would like to have this in place until we can
determine the cause of the bug.

Change-Id: I1ecee745f42a93ded4f651cc8ad51963f250e78d
Reviewed-by: Christoph Schleifenbaum <christoph.schleifenbaum@kdab.com>
Reviewed-by: Bradley T. Hughes <bradley.hughes@nokia.com>
Reviewed-by: Morten Johan Sørvig <morten.sorvig@nokia.com>
This commit is contained in:
Morten Sorvig 2012-05-25 11:36:03 +02:00 committed by Qt by Nokia
parent 4951d16110
commit 09001e72dc
1 changed files with 11 additions and 1 deletions
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12
src/plugins/platforms/cocoa/qcocoabackingstore.mm
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@ -72,8 +72,18 @@ void QCocoaBackingStore::flush(QWindow *widget, const QRegion &region, const QPo
QRect geo = region.boundingRect();
NSRect rect = NSMakeRect(geo.x(), geo.y(), geo.width(), geo.height());
QCocoaWindow *cocoaWindow = static_cast<QCocoaWindow *>(window()->handle());
if (cocoaWindow)
if (cocoaWindow) {
#if MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_8
if (QSysInfo::QSysInfo::MacintoshVersion >= QSysInfo::MV_10_8) {
// Workaround for malfunctioning displayRect on 10.8 where
// calling it seems to have no effect. Call setImage like
// resize() does.
[cocoaWindow->m_contentView setImage:m_image];
}
#endif
[cocoaWindow->m_contentView displayRect:rect];
}
}
void QCocoaBackingStore::resize(const QSize &size, const QRegion &)