diff -r fb3763350a08 -r 4d54b72983ae taskswitcher/taskswitcherui/taskswitcherapp/inc/tsphysicsengine.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/taskswitcher/taskswitcherui/taskswitcherapp/inc/tsphysicsengine.h	Tue Jan 26 11:48:23 2010 +0200
@@ -0,0 +1,116 @@
+/*
+* Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of "Eclipse Public License v1.0"
+* which accompanies this distribution, and is available
+* at the URL "http://www.eclipse.org/legal/epl-v10.html".
+*
+* Initial Contributors:
+* Nokia Corporation - initial contribution.
+*
+* Contributors:
+*
+* Description:  Taskswitcher physic engine
+ *
+*/
+
+
+#ifndef TSPHYSICSENGINE_H_
+#define TSPHYSICSENGINE_H_
+
+#include <e32base.h>
+#include <akntouchgesturefw.h>
+// CLASS DECLARATION
+class CAknPhysics;
+class CTsPhysics;
+/**
+ * Taskswitcher physic engine implementation
+ */
+class CTsPhysicsEngine: public CBase
+    {
+public:
+    // Constructors and destructor
+
+    /**
+     * Destructor.
+     */
+    ~CTsPhysicsEngine();
+
+    /**
+     * Two-phased constructor.
+     */
+    static CTsPhysicsEngine* NewL(MAknPhysicsObserver& aPhysicObserver,
+            CCoeControl& aViewControl);
+
+    /**
+     * Two-phased constructor.
+     */
+    static CTsPhysicsEngine* NewLC(MAknPhysicsObserver& aPhysicObserver,
+            CCoeControl& aViewControl);
+
+private:
+
+    /**
+     * Constructor for performing 1st stage construction
+     */
+    CTsPhysicsEngine();
+
+    /**
+     * EPOC default constructor for performing 2nd stage construction
+     */
+    void ConstructL(MAknPhysicsObserver& aPhysicObserver,
+            CCoeControl& aViewControl);
+    
+    
+public:
+    /**
+     * Implements drag gesture handling
+     * @param aEvent - drag event
+     */
+    void HandleDragEvent(AknTouchGestureFw::MAknTouchGestureFwDragEvent& aEvent);
+    
+    /**
+     */
+    TBool IsRunning() const;
+    
+    /**
+     */
+    void Stop();
+    
+    /**
+     * Initialize animation between current position and destination point
+     * @param aPoint - destination point 
+     */
+    void AnimateToTarget(const TPoint& aPoint);
+    
+    /**
+     * 
+     * @param aWorldSize Physics world size.
+     * @param aViewSize Physics (visible) view size.
+     * @param aLandscape ETrue if physics should work in landscape.     
+     **/
+    void ReInitPhysicsL(const TSize& aWorldSize, 
+                        const TSize& aViewSize,
+                        TBool aLandscape);
+    
+private:
+    /**
+     * Physics. 
+     * Own.
+     */
+    CAknPhysics* iPhysics;
+
+    /**
+     * Drag start time
+     */
+    TTime iStartTime;
+    
+    /**
+     * Taskswitcher physics for item switch animation
+     */
+    CTsPhysics* iTaskswitcherPhysics;
+
+    };
+
+#endif /* TSPHYSICSENGINE_H_*/