Move the systemTrayVisualHasAlphaChannel to the QXcbSystemTrayTracker

also expose it through the QXcbScreenFunctions platform header and use
it in the qsystemtrayicon_x11.cpp. This gives us static typechecking.

Change-Id: Ia9e2e2563ed5994be0b19d7bcf5a6aca92b1b760
Reviewed-by: Shawn Rutledge <shawn.rutledge@digia.com>

1 files changed, 2 insertions, 2 deletions

diff --git a/src/plugins/platforms/xcb/qxcbsystemtraytracker.h b/src/plugins/platforms/xcb/qxcbsystemtraytracker.h
index 9c20f1729a..b619afb9c4 100644
--- a/src/plugins/platforms/xcb/qxcbsystemtraytracker.h
+++ b/src/plugins/platforms/xcb/qxcbsystemtraytracker.h
@@ -57,14 +57,14 @@ public:
 
     void handleDestroyNotifyEvent(const xcb_destroy_notify_event_t *) Q_DECL_OVERRIDE;
 
+    bool visualHasAlphaChannel();
 signals:
     void systemTrayWindowChanged(QScreen *screen);
 
 private:
     explicit QXcbSystemTrayTracker(QXcbConnection *connection,
                                    xcb_atom_t trayAtom,
-                                   xcb_atom_t selection,
-                                   QObject *parent = 0);
+                                   xcb_atom_t selection);
     static xcb_window_t locateTrayWindow(const QXcbConnection *connection, xcb_atom_t selection);
     void emitSystemTrayWindowChanged();