qpa: Make screen geometry updates (full and available geometry) atomic

Updating the geometry and available geometry in two steps means that
QScreen will be in an inconsistent state when emitting the geometry
change signal, as the available geometry has not been updated yet.

Piggy-backing changes to the availableGeometry based on the virtual
geometry changing does not make sense, so we now tie geometry and
availableGeometry (and their size variants) to their own separate
geometryChanged and availableGeometryChanged signals.

Change-Id: Iee0ced642cbb91c470cb54bc507d2c0512482c13
Reviewed-by: Richard Moe Gustavsen <richard.gustavsen@digia.com>
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@digia.com>
Reviewed-by: Eskil Abrahamsen Blomfeldt <eskil.abrahamsen-blomfeldt@digia.com>
Reviewed-by: Paul Olav Tvete <paul.tvete@digia.com>

1 files changed, 1 insertions, 2 deletions

diff --git a/src/gui/kernel/qwindowsysteminterface.h b/src/gui/kernel/qwindowsysteminterface.h
index 580f1f86fa..c681185c35 100644
--- a/src/gui/kernel/qwindowsysteminterface.h
+++ b/src/gui/kernel/qwindowsysteminterface.h
@@ -164,8 +164,7 @@ public:
 
     // Changes to the screen
     static void handleScreenOrientationChange(QScreen *screen, Qt::ScreenOrientation newOrientation);
-    static void handleScreenGeometryChange(QScreen *screen, const QRect &newGeometry);
-    static void handleScreenAvailableGeometryChange(QScreen *screen, const QRect &newAvailableGeometry);
+    static void handleScreenGeometryChange(QScreen *screen, const QRect &newGeometry, const QRect &newAvailableGeometry);
     static void handleScreenLogicalDotsPerInchChange(QScreen *screen, qreal newDpiX, qreal newDpiY);
     static void handleScreenRefreshRateChange(QScreen *screen, qreal newRefreshRate);