diff --git a/events.cpp b/events.cpp
index a6cf6abefa..f4c58fa5cf 100644
--- a/events.cpp
+++ b/events.cpp
@@ -1093,37 +1093,6 @@ void Client::updateMouseGrab()
         }
     }
 
-int qtToX11Button( Qt::ButtonState button )
-    {
-    if( button == Qt::LeftButton )
-        return Button1;
-    else if( button == Qt::MidButton )
-        return Button2;
-    else if( button == Qt::RightButton )
-        return Button3;
-    return AnyButton;
-    }
-    
-int qtToX11State( Qt::ButtonState buttons, Qt::KeyboardModifiers modifiers )
-    {
-    int ret = 0;
-    if( buttons & Qt::LeftButton )
-        ret |= Button1Mask;
-    if( buttons & Qt::MidButton )
-        ret |= Button2Mask;
-    if( buttons & Qt::RightButton )
-        ret |= Button3Mask;
-    if( modifiers & Qt::ShiftModifier )
-        ret |= ShiftMask;
-    if( modifiers & Qt::ControlModifier )
-        ret |= ControlMask;
-    if( modifiers & Qt::AltModifier )
-        ret |= KKeyServer::modXAlt();
-    if( modifiers & Qt::MetaModifier )
-        ret |= KKeyServer::modXMeta();
-    return ret;
-    }
-
 // Qt propagates mouse events up the widget hierachy, which means events
 // for the decoration window cannot be (easily) intercepted as X11 events
 bool Client::eventFilter( QObject* o, QEvent* e )
diff --git a/utils.cpp b/utils.cpp
index ef7b939b88..336aafdea7 100644
--- a/utils.cpp
+++ b/utils.cpp
@@ -25,6 +25,7 @@ License. See the file "COPYING" for the exact licensing terms.
 #include <assert.h>
 #include <kdebug.h>
 #include <kshortcut.h>
+#include <kkeyserver.h>
 
 #include <X11/Xlib.h>
 #include <X11/extensions/shape.h>
@@ -351,6 +352,77 @@ bool grabbedXServer()
     {
     return server_grab_count > 0;
     }
+
+// converting between X11 mouse/keyboard state mask and Qt button/keyboard states
+
+int qtToX11Button( Qt::MouseButton button )
+    {
+    if( button == Qt::LeftButton )
+        return Button1;
+    else if( button == Qt::MidButton )
+        return Button2;
+    else if( button == Qt::RightButton )
+        return Button3;
+    return AnyButton; // 0
+    }
+
+Qt::MouseButton x11ToQtMouseButton( int button )
+    {
+    if( button == Button1 )
+        return Qt::LeftButton;
+    if( button == Button2 )
+        return Qt::MidButton;
+    if( button == Button3 )
+        return Qt::RightButton;
+    return Qt::NoButton;
+    }
+
+int qtToX11State( Qt::MouseButtons buttons, Qt::KeyboardModifiers modifiers )
+    {
+    int ret = 0;
+    if( buttons & Qt::LeftButton )
+        ret |= Button1Mask;
+    if( buttons & Qt::MidButton )
+        ret |= Button2Mask;
+    if( buttons & Qt::RightButton )
+        ret |= Button3Mask;
+    if( modifiers & Qt::ShiftModifier )
+        ret |= ShiftMask;
+    if( modifiers & Qt::ControlModifier )
+        ret |= ControlMask;
+    if( modifiers & Qt::AltModifier )
+        ret |= KKeyServer::modXAlt();
+    if( modifiers & Qt::MetaModifier )
+        ret |= KKeyServer::modXMeta();
+    return ret;
+    }
+
+Qt::MouseButtons x11ToQtMouseButtons( int state )
+    {
+    Qt::MouseButtons ret = 0;
+    if( state & Button1Mask )
+        ret |= Qt::LeftButton;
+    if( state & Button2Mask )
+        ret |= Qt::MidButton;
+    if( state & Button3Mask )
+        ret |= Qt::RightButton;
+    return ret;
+    }
+
+Qt::KeyboardModifiers x11ToQtKeyboardModifiers( int state )
+    {
+    Qt::KeyboardModifiers ret = 0;
+    if( state & ShiftMask )
+        ret |= Qt::ShiftModifier;
+    if( state & ControlMask )
+        ret |= Qt::ControlModifier;
+    if( state & KKeyServer::modXAlt())
+        ret |= Qt::AltModifier;
+    if( state & KKeyServer::modXMeta())
+        ret |= Qt::MetaModifier;
+    return ret;
+    }
+
 #endif
 
 bool isLocalMachine( const QByteArray& host )
diff --git a/utils.h b/utils.h
index 3902e7629e..20ed1a6909 100644
--- a/utils.h
+++ b/utils.h
@@ -12,6 +12,32 @@ License. See the file "COPYING" for the exact licensing terms.
 #ifndef KWIN_UTILS_H
 #define KWIN_UTILS_H
 
+#include <config.h>
+#include <config-X11.h>
+
+#include <X11/Xlib.h>
+
+#ifdef HAVE_XRANDR
+#include <X11/extensions/Xrandr.h>
+#endif
+
+#ifdef HAVE_XCOMPOSITE
+#include <X11/extensions/Xcomposite.h>
+#if XCOMPOSITE_MAJOR > 0 || XCOMPOSITE_MINOR >= 3
+#define HAVE_XCOMPOSITE_OVERLAY
+#endif
+#endif
+
+#ifdef HAVE_XDAMAGE
+#include <X11/extensions/Xdamage.h>
+#endif
+
+#ifdef HAVE_XFIXES
+#include <X11/extensions/Xfixes.h>
+#endif
+
+#include <fixx11h.h>
+
 #include <QWidget>
 #include <kmanagerselection.h>
 #include <netwm_def.h>
@@ -22,6 +48,13 @@ License. See the file "COPYING" for the exact licensing terms.
 namespace KWinInternal
 {
 
+#ifndef HAVE_XDAMAGE
+typedef long Damage;
+struct XDamageNotifyEvent
+    {
+    };
+#endif
+
 const int SUPPORTED_WINDOW_TYPES_MASK = NET::NormalMask | NET::DesktopMask | NET::DockMask
     | NET::ToolbarMask | NET::MenuMask | NET::DialogMask /*| NET::OverrideMask*/ | NET::TopMenuMask
     | NET::UtilityMask | NET::SplashMask;
@@ -39,12 +72,18 @@ const long ClientWinMask = KeyPressMask | KeyReleaseMask |
 
 const QPoint invalidPoint( INT_MIN, INT_MIN );
 
+class Toplevel;
 class Client;
+class Unmanaged;
 class Group;
 class Options;
 
+typedef QList< Toplevel* > ToplevelList;
+typedef QList< const Toplevel* > ConstToplevelList;
 typedef QList< Client* > ClientList;
 typedef QList< const Client* > ConstClientList;
+typedef QList< Unmanaged* > UnmanagedList;
+typedef QList< const Unmanaged* > ConstUnmanagedList;
 
 typedef QList< Group* > GroupList;
 typedef QList< const Group* > ConstGroupList;
@@ -87,6 +126,7 @@ enum allowed_t { Allowed };
 // some enums to have more readable code, instead of using bools
 enum ForceGeometry_t { NormalGeometrySet, ForceGeometrySet };
 
+
 // Areas, mostly related to Xinerama
 enum clientAreaOption
     {
@@ -109,24 +149,32 @@ enum ShadeMode
     ShadeActivated // "shaded", but visible due to alt+tab to the window
     };
 
-class Shape 
+class Extensions
     {
     public:
-        static bool available() { return kwin_shape_version > 0; }
-        static int version() { return kwin_shape_version; } // as 16*major+minor, i.e. two hex digits
-        static bool hasShape( WId w);
-        static int shapeEvent();
         static void init();
+        static bool shapeAvailable() { return has_shape; }
+        static int shapeNotifyEvent();
+        static bool randrAvailable() { return has_randr; }
+        static int randrNotifyEvent();
+        static bool damageAvailable() { return has_damage; }
+        static int damageNotifyEvent();
+        static bool compositeAvailable() { return has_composite; }
+        static bool compositeOverlayAvailable() { return has_composite && has_composite_overlay; }
+        static bool fixesAvailable() { return has_fixes; }
+        static bool hasShape( Window w );
     private:
-        static int kwin_shape_version;
-        static int kwin_shape_event;
+        static bool has_shape;
+        static int shape_event_base;
+        static bool has_randr;
+        static int randr_event_base;
+        static bool has_damage;
+        static int damage_event_base;
+        static bool has_composite;
+        static bool has_composite_overlay;
+        static bool has_fixes;
     };
 
-// compile with XShape older than 1.0
-#ifndef ShapeInput
-const int ShapeInput = 2;
-#endif
-
 class Motif 
     {
     public:
@@ -226,34 +274,38 @@ int displayHeight()
     return XDisplayHeight( display(), DefaultScreen( display()));
     }
 
+class Scene;
+extern Scene* scene;
+inline bool compositing() { return scene != NULL; }
+
 // the docs say it's UrgencyHint, but it's often #defined as XUrgencyHint
 #ifndef UrgencyHint
 #define UrgencyHint XUrgencyHint
 #endif
 
 // for STL-like algo's
-#define KWIN_CHECK_PREDICATE( name, check ) \
+#define KWIN_CHECK_PREDICATE( name, cls, check ) \
 struct name \
     { \
-    inline bool operator()( const Client* cl ) { return check; }; \
+    inline bool operator()( const cls* cl ) { return check; }; \
     }
 
-#define KWIN_COMPARE_PREDICATE( name, type, check ) \
+#define KWIN_COMPARE_PREDICATE( name, cls, type, check ) \
 struct name \
     { \
     typedef type type_helper; /* in order to work also with type being 'const Client*' etc. */ \
     inline name( const type_helper& compare_value ) : value( compare_value ) {}; \
-    inline bool operator()( const Client* cl ) { return check; }; \
+    inline bool operator()( const cls* cl ) { return check; }; \
     const type_helper& value; \
     }
 
-#define KWIN_PROCEDURE( name, action ) \
+#define KWIN_PROCEDURE( name, cls, action ) \
 struct name \
     { \
-    inline void operator()( Client* cl ) { action; }; \
+    inline void operator()( cls* cl ) { action; }; \
     }
 
-KWIN_CHECK_PREDICATE( TruePredicate, cl == cl /*true, avoid warning about 'cl' */ );
+KWIN_CHECK_PREDICATE( TruePredicate, Client, cl == cl /*true, avoid warning about 'cl' */ );
 
 template< typename T >
 Client* findClientInList( const ClientList& list, T predicate )
@@ -266,6 +318,17 @@ Client* findClientInList( const ClientList& list, T predicate )
     return NULL;
     }
 
+template< typename T >
+Unmanaged* findUnmanagedInList( const UnmanagedList& list, T predicate )
+    {
+    for ( UnmanagedList::ConstIterator it = list.begin(); it != list.end(); ++it) 
+        {
+        if ( predicate( const_cast< const Unmanaged* >( *it)))
+            return *it;
+        }
+    return NULL;
+    }
+
 inline
 int timestampCompare( Time time1, Time time2 ) // like strcmp()
     {
@@ -280,7 +343,12 @@ Time timestampDiff( Time time1, Time time2 ) // returns time2 - time1
 
 bool isLocalMachine( const QByteArray& host );
 
-void checkNonExistentClients();
+// converting between X11 mouse/keyboard state mask and Qt button/keyboard states
+int qtToX11Button( Qt::MouseButton button );
+Qt::MouseButton x11ToQtMouseButton( int button );
+int qtToX11State( Qt::MouseButtons buttons, Qt::KeyboardModifiers modifiers );
+Qt::MouseButtons x11ToQtMouseButtons( int state );
+Qt::KeyboardModifiers x11ToQtKeyboardModifiers( int state );
 
 #ifndef KCMRULES
 // Qt dialogs emit no signal when closed :(