diff options
| -rw-r--r-- | src/plugins/platforms/cocoa/qnsview.mm | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/src/plugins/platforms/cocoa/qnsview.mm b/src/plugins/platforms/cocoa/qnsview.mm index f75ee59142..16207d8de8 100644 --- a/src/plugins/platforms/cocoa/qnsview.mm +++ b/src/plugins/platforms/cocoa/qnsview.mm @@ -53,6 +53,7 @@ #include <QtCore/qsysinfo.h> #include <private/qguiapplication_p.h> #include <private/qcoregraphics_p.h> +#include <private/qwindow_p.h> #include "qcocoabackingstore.h" #ifndef QT_NO_OPENGL #include "qcocoaglcontext.h" @@ -332,6 +333,17 @@ static QTouchDevice *touchDevice = 0; #endif m_platformWindow->handleExposeEvent(exposedRegion); + + // A call to QWindow::requestUpdate was issued during the expose event, but + // AppKit will reset the needsDisplay state of the view after completing the + // current display cycle, so we need to defer the request to redisplay. + // FIXME: Perhaps this should be a trigger to enable CADisplayLink? + if (qt_window_private(m_platformWindow->window())->updateRequestPending) { + qCDebug(lcQpaCocoaWindow) << "[QNSView drawRect:] deferring setNeedsDisplay"; + dispatch_async(dispatch_get_main_queue (), ^{ + [self setNeedsDisplay:YES]; + }); + } } - (BOOL)wantsUpdateLayer |