Cocoa: avoid sending exposes too early
Expose events trigger backing store sync and thus paint events on QGLWidgets. Sending the exposes too early may lead to failures in the OpenGL calls. Sending exposes before even getting to calling setVisible(true) in QWidget::show() is just wrong. Task-number: QTBUG-36802 Change-Id: Ic7d5125f4e257d715009811217e453d79d0fcc7c Reviewed-by: Gunnar Sletta <gunnar@sletta.org>
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@ -361,8 +361,12 @@ static NSString *_q_NSWindowDidChangeOcclusionStateNotification = nil;
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// Send a geometry change event to Qt, if it's ready to handle events
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if (!m_platformWindow->m_inConstructor) {
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QWindowSystemInterface::handleGeometryChange(m_window, geometry);
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m_platformWindow->updateExposedGeometry();
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QWindowSystemInterface::flushWindowSystemEvents();
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// Do not send incorrect exposes in case the window is not even visible yet.
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// We might get here as a result of a resize() from QWidget's show(), for instance.
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if (m_platformWindow->window()->isVisible()) {
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m_platformWindow->updateExposedGeometry();
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QWindowSystemInterface::flushWindowSystemEvents();
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}
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}
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}
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