get the default gfx driver from QWS_DISPLAY instead of hardcoding

it to 'Transformed' when launching rotated apps.
Patch courtesy Manuel Teira

1 files changed, 4 insertions, 1 deletions

diff --git a/library/qpeapplication.cpp b/library/qpeapplication.cpp
index 0f3e4a4..19e99f2 100644
--- a/library/qpeapplication.cpp
+++ b/library/qpeapplication.cpp
@@ -1283,17 +1283,20 @@ int QPEApplication::defaultRotation()
 
 /*!
   \internal
 */
 void QPEApplication::setDefaultRotation( int r )
 {
     if ( qApp->type() == GuiServer ) {
         deforient = r;
-        setenv( "QWS_DISPLAY", QString( "Transformed:Rot%1:0" ).arg( r ).latin1(), 1 );
+        int j = 0;
+        QCString old = getenv( "QWS_DISPLAY" ) ? getenv( "QWS_DISPLAY" ) : "Transformed";
+        QString driver( old.left( ( ( j = old.find( ':' ) ) >= 0 ) ? j : old.size() ).data() );
+        setenv( "QWS_DISPLAY", QString( "%1:Rot%2:0" ).arg(driver).arg( r ).latin1(), 1 );
         Config config("qpe");
         config.setGroup( "Rotation" );
         config.writeEntry( "Rot", r );
     }
     else {
 #ifndef QT_NO_COP
         { QCopEnvelope e( "QPE/System", "setDefaultRotation(int)" );
             e << r;