Add a ThemeChange event.

- Pass it from QWindowSystemInterface via QWindow to the widgets.
- Add handler code from 4.8 / qapplication_win.cpp to qwidget.cpp.

Change-Id: Ic759563aa00cb93fe014c1bf41020446c1927dec
Reviewed-by: Morten Johan Sørvig <morten.sorvig@nokia.com>
Reviewed-by: Samuel Rødal <samuel.rodal@nokia.com>

1 files changed, 8 insertions, 0 deletions

diff --git a/src/gui/kernel/qwindowsysteminterface_qpa_p.h b/src/gui/kernel/qwindowsysteminterface_qpa_p.h
index 0bd9ba017a..661b39da88 100644
--- a/src/gui/kernel/qwindowsysteminterface_qpa_p.h
+++ b/src/gui/kernel/qwindowsysteminterface_qpa_p.h
@@ -64,6 +64,7 @@ public:
         ScreenGeometry,
         ScreenAvailableGeometry,
         ScreenLogicalDotsPerInch,
+        ThemeChange,
         Map,
         Unmap,
         Expose
@@ -230,6 +231,13 @@ public:
         qreal dpiY;
     };
 
+    class ThemeChangeEvent : public WindowSystemEvent {
+    public:
+        explicit ThemeChangeEvent(QWindow * w)
+            : WindowSystemEvent(ThemeChange), window(w) { }
+        QWeakPointer<QWindow> window;
+    };
+
     class MapEvent : public WindowSystemEvent {
     public:
         MapEvent(QWindow *mapped)