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| author | Timur Pocheptsov <Timur.Pocheptsov@digia.com> | 2014-10-28 11:41:34 +0100 |
|---|---|---|
| committer | Timur Pocheptsov <Timur.Pocheptsov@digia.com> | 2014-10-28 13:32:02 +0100 |
| commit | 916dfcb8275bcce6b39606cd0b930239a60dc5df (patch) | |
| tree | 1e079bf0eff8a42072f9727ec91cc4b4e83f7992 /src/plugins/platforms/cocoa/qnsview.h | |
| parent | 148aa0e3e35f9bdf3e68fdf2c9cc509d2e093275 (diff) | |
OS X - Cocoa backing store and drawRect
m_backingStore pointer has a limited 'lifetime' - usually
it is set in -flushBackingStore:region:offset: method, then -drawRect:
is invoked/forced by -setNeedsDisplayInRect:, after that it's dangerous to
have a non-null pointer to a backing store (and we reset it).
But if Cocoa invokes drawRect (due to some reason) our null backing store pointer is also
not good. This patch instead is using a shared resource (QImage) from a backing store.
This patch also makes getBackingStoreCGImage() redundant - -drawRect: was the only
place we called it.
Task-number: QTBUG-42206
Change-Id: Ie7726336f05d07c52f660f6326ae5cef114201dd
Reviewed-by: Gabriel de Dietrich <gabriel.dedietrich@theqtcompany.com>
Diffstat (limited to 'src/plugins/platforms/cocoa/qnsview.h')
| -rw-r--r-- | src/plugins/platforms/cocoa/qnsview.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/src/plugins/platforms/cocoa/qnsview.h b/src/plugins/platforms/cocoa/qnsview.h index 8b23f84a25..8d8df13dc3 100644 --- a/src/plugins/platforms/cocoa/qnsview.h +++ b/src/plugins/platforms/cocoa/qnsview.h @@ -51,7 +51,8 @@ QT_END_NAMESPACE Q_FORWARD_DECLARE_OBJC_CLASS(QNSViewMouseMoveHelper); @interface QT_MANGLE_NAMESPACE(QNSView) : NSView <NSTextInputClient> { - QCocoaBackingStore* m_backingStore; + QImage m_backingStore; + qreal m_pixelRatio; QPoint m_backingStoreOffset; CGImageRef m_maskImage; uchar *m_maskData; |