diff --git a/src/desktop/UBDesktopAnnotationController.cpp b/src/desktop/UBDesktopAnnotationController.cpp index c7a84db8..81133d44 100644 --- a/src/desktop/UBDesktopAnnotationController.cpp +++ b/src/desktop/UBDesktopAnnotationController.cpp @@ -84,8 +84,18 @@ UBDesktopAnnotationController::UBDesktopAnnotationController(QObject *parent, UB mTransparentDrawingView->setAttribute(Qt::WA_TranslucentBackground, true); #ifdef Q_OS_OSX mTransparentDrawingView->setAttribute(Qt::WA_MacNoShadow, true); -#endif + /* https://bugreports.qt.io/browse/QTBUG-81456 */ + if (QOperatingSystemVersion::current().minorVersion() > 12) /* > Sierra */ + { + mTransparentDrawingView->setWindowFlags(Qt::FramelessWindowHint | Qt::WindowStaysOnBottomHint | Qt::Window | Qt::NoDropShadowWindowHint | Qt::X11BypassWindowManagerHint); + } + else + { + mTransparentDrawingView->setWindowFlags(Qt::FramelessWindowHint | Qt::WindowStaysOnTopHint | Qt::Window | Qt::NoDropShadowWindowHint | Qt::X11BypassWindowManagerHint); + } +#else mTransparentDrawingView->setWindowFlags(Qt::FramelessWindowHint | Qt::WindowStaysOnTopHint | Qt::Window | Qt::NoDropShadowWindowHint | Qt::X11BypassWindowManagerHint); +#endif mTransparentDrawingView->setCacheMode(QGraphicsView::CacheNone); mTransparentDrawingView->resize(UBApplication::desktop()->width(), UBApplication::desktop()->height());