diff options
Diffstat (limited to 'src/widgets/util/qsystemtrayicon_x11.cpp')
| -rw-r--r-- | src/widgets/util/qsystemtrayicon_x11.cpp | 23 |
1 files changed, 11 insertions, 12 deletions
diff --git a/src/widgets/util/qsystemtrayicon_x11.cpp b/src/widgets/util/qsystemtrayicon_x11.cpp index 070ab367f7..2b153d53d9 100644 --- a/src/widgets/util/qsystemtrayicon_x11.cpp +++ b/src/widgets/util/qsystemtrayicon_x11.cpp @@ -88,6 +88,7 @@ private: bool addToTray(); QSystemTrayIcon *q; + QPixmap background; }; QSystemTrayIconSys::QSystemTrayIconSys(QSystemTrayIcon *qIn) @@ -151,6 +152,8 @@ bool QSystemTrayIconSys::addToTray() qWarning("requestSystemTrayWindowDock failed."); return false; } + if (!background.isNull()) + background = QPixmap(); show(); return true; } @@ -230,18 +233,14 @@ void QSystemTrayIconSys::paintEvent(QPaintEvent *) painter.setCompositionMode(QPainter::CompositionMode_Source); painter.fillRect(rect, Qt::transparent); } else { - // Without Qt::WA_TranslucentBackground, we use a ParentRelative BackPixmap and jump through - // some hops to draw this background below our icon. This clears the whole tray icon to its - // background color and thus causes flickering (you can see that the icon is being - // repainted). However, we can't really do much about this. - QMetaObject::invokeMethod(QGuiApplication::platformNativeInterface(), - "clearRegion", Qt::DirectConnection, - Q_ARG(const QWindow *, windowHandle()), - Q_ARG(const QRect&, rect) - ); - painter.drawPixmap(QPoint(0, 0), - QGuiApplication::primaryScreen()->grabWindow(winId(), - 0, 0, rect.size().width(), rect.size().height())); + // clearRegion() was called on XEMBED_EMBEDDED_NOTIFY, so we hope that got done by now. + // Grab the tray background pixmap, before rendering the icon for the first time. + if (background.isNull()) { + background = QGuiApplication::primaryScreen()->grabWindow(winId(), + 0, 0, rect.size().width(), rect.size().height()); + } + // Then paint over the icon area with the background before compositing the icon on top. + painter.drawPixmap(QPoint(0, 0), background); } painter.setCompositionMode(QPainter::CompositionMode_SourceOver); q->icon().paint(&painter, rect); |