directfb: Access the screen layer through QWindow::screen()

Instead of assuming which layer was assigned to Qt, resolve the to
be used layer via QWindow::screen()->handle(). Add a method to the
DirectFB QPlatformScreen to provide a pointer to the IDirectFBDisplayLayer

Change-Id: Iaea9466ca84daff752a4932deafbe38f48123715
Reviewed-by: Jørgen Lind <jorgen.lind@nokia.com>

1 files changed, 9 insertions, 0 deletions

diff --git a/src/plugins/platforms/directfb/qdirectfbconvenience.cpp b/src/plugins/platforms/directfb/qdirectfbconvenience.cpp
index 440e9b00bc..61b20185c8 100644
--- a/src/plugins/platforms/directfb/qdirectfbconvenience.cpp
+++ b/src/plugins/platforms/directfb/qdirectfbconvenience.cpp
@@ -41,9 +41,13 @@
 
 #include "qdirectfbconvenience.h"
 #include "qdirectfbblitter.h"
+#include "qdirectfbscreen.h"
 
 #include <private/qpixmap_blitter_p.h>
 
+#include <QtGui/QWindow>
+#include <QtGui/QScreen>
+
 IDirectFB *QDirectFbConvenience::dfbInterface()
 {
     static IDirectFB *dfb = 0;
@@ -378,3 +382,8 @@ QDirectFbKeyMap::QDirectFbKeyMap()
     insert(DIKS_CURLY_BRACKET_RIGHT   , Qt::Key_BraceRight);
     insert(DIKS_TILDE                 , Qt::Key_AsciiTilde);
 }
+
+QDirectFbScreen *toDfbScreen(QWindow *window)
+{
+    return static_cast<QDirectFbScreen*>(window->screen()->handle());
+}