diff options
| -rw-r--r-- | src/plugins/platforms/cocoa/qcocoaintegration.mm | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/src/plugins/platforms/cocoa/qcocoaintegration.mm b/src/plugins/platforms/cocoa/qcocoaintegration.mm index 412818ae47..9d5388d33b 100644 --- a/src/plugins/platforms/cocoa/qcocoaintegration.mm +++ b/src/plugins/platforms/cocoa/qcocoaintegration.mm @@ -81,12 +81,16 @@ QCocoaScreen::~QCocoaScreen() NSScreen *QCocoaScreen::osScreen() const { - return [[NSScreen screens] objectAtIndex:m_screenIndex]; + NSArray *screens = [NSScreen screens]; + return ((NSUInteger)m_screenIndex < [screens count]) ? [screens objectAtIndex:m_screenIndex] : nil; } void QCocoaScreen::updateGeometry() { NSScreen *nsScreen = osScreen(); + if (!nsScreen) + return; + NSRect frameRect = [nsScreen frame]; if (m_screenIndex == 0) { @@ -143,7 +147,8 @@ qreal QCocoaScreen::devicePixelRatio() const { #if MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_7 if (QSysInfo::MacintoshVersion >= QSysInfo::MV_10_7) { - return qreal([osScreen() backingScaleFactor]); + NSScreen * screen = osScreen(); + return qreal(screen ? [screen backingScaleFactor] : 1.0); } else #endif { |