--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/uifw/AvKon/aknphysics/inc/aknphysicsengine.h	Tue Feb 02 01:00:49 2010 +0200
@@ -0,0 +1,301 @@
+/*
+* 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:  AknPhysics engine
+*
+*/
+
+
+#ifndef C_AKNPHYSICSENGINE_H
+#define C_AKNPHYSICSENGINE_H
+
+
+#include <e32base.h>
+#include <ode/ode.h>
+
+class CAknPhysics;
+class RAlfDirectClient;
+
+/**
+ *  Physics engine
+ *
+ *  @lib aknphysics
+ *  @since S60 v5.0
+ */
+NONSHARABLE_CLASS( CAknPhysicsEngine ) : public CBase
+    {
+
+public:
+
+    /**
+     * Collision definitions.
+     */
+    enum TAknPhysicsCollision
+        {
+        EAknPhysicsNoCollision,
+        EAknPhysicsBottomCollision,
+        EAknPhysicsTopCollision
+        };
+
+    /**
+     * Two-phased constructor.
+     */
+    static CAknPhysicsEngine* NewL( CAknPhysics* aPhysics );
+
+    /**
+     * Two-phased constructor.
+     */
+    static CAknPhysicsEngine* NewLC( CAknPhysics* aPhysics );
+
+    /**
+     * Destructor.
+     */
+    virtual ~CAknPhysicsEngine();
+    
+    /**
+     * Return ETrue if ODE world exists.
+     *
+     * @return ETrue if ODE world exists.
+     */
+    TBool WorldExists() const;
+
+    /**
+     * Creates ODE world.
+     *
+     * @param aGravity World gravity factor.
+     */
+    void CreateWorld( const TInt& aGravity );
+    
+    /**
+     * Creates ODE planes.
+     *
+     * @param aIh
+     * @param aX
+     * @param aY
+     * @param aR
+     */
+    void CreatePlanes( const TInt64& aIh,
+                       const TInt64& aX,
+                       const TInt64& aY,
+                       const TInt64& aR );
+
+    /**
+     * Creates ODE view body.
+     *
+     * @param aWidth View width.
+     * @param aHeight View height.
+     * @param aMass View mass.
+     */
+    void CreateViewBody( const TInt64& aWidth,
+                         const TInt64& aHeight,
+                         const TInt64& aMass );
+
+    /**
+     * Set view body position.
+     *
+     * @param aPosition View body position.
+     */
+    void SetViewBodyPosition( const TPoint& aPosition );
+
+    /**
+     * Get view body position.
+     *
+     * @param aPosition New view body position.
+     */
+    void GetViewBodyPosition( TPoint& aPosition );
+
+    /**
+     * Resets view body force and velocity.
+     */
+    void ResetViewBodyForceAndVelocity();
+
+    /**
+     * Enables view body.
+     */
+    void EnableViewBody();
+
+    /**
+     * Returns ETrue if view body is enabled.
+     *
+     * @return ETrue if view body is enabled.
+     */
+    TBool IsViewBodyEnabled() const;
+
+    /**
+     * Applies force factor.
+     *
+     * @param aDrag Dragging distance.
+     * @param aMoveTime Dragging move time.
+     */
+    void ApplyDragForce( const TPoint& aDrag,
+                         const TInt& aMoveTime );
+
+    /**
+     * Returns collision state.
+     *
+     * @return Collision state.
+     */
+    const TAknPhysicsCollision& CollisionState();
+
+    /**
+     * Resets collision state.
+     */
+    void ResetCollisionState();
+
+    /**
+     * Takes physics step.
+     */
+    void TakePhysicsStep();
+
+    /**
+     * Deletes physics.
+     */
+    void DeletePhysics();
+
+    /**
+     * Sets friction.
+     *
+     * @param aFriction New friction value.
+     */
+    void SetFriction( TReal aFriction );
+
+    /**
+     * Resets friction.
+     */
+    void ResetFriction();
+    
+    /**
+     * Starts FPS logging.
+     */
+    void StartFpsLogging();
+    
+    /**
+     * Stops FPS logging.
+     */
+    void StopFpsLogging();
+
+private:
+
+    /**
+     * C++ constructor.
+     */
+    CAknPhysicsEngine( CAknPhysics* aPhysics );
+
+    /**
+     * Symbian second-phase constructor.
+     */
+    void ConstructL();
+    
+    /**
+     * Physics collision step callback function.
+     *
+     * @param aData Pointer to CAknPhysicsEngine instance.
+     * @param o0
+     * @param o1
+     */
+    static void CallbackFunc( void* aData, dGeomID o0, dGeomID o1 );
+
+    /**
+     * Physics collision handling function.
+     *
+     * @param o0
+     * @param o1
+     */
+    void HandleCollisionBetween( dGeomID aObject1, dGeomID aObject2 );
+
+private: // data
+
+    /**
+     * ODE world.
+     */
+    dWorldID iWorldId;
+
+    /**
+     * ODE collision space.
+     */
+    dSpaceID iSpace;
+
+    /**
+     * ODE collision contact group.
+     */
+    dJointGroupID iContactGroup;
+
+    /**
+     * ODE top plane.
+     */
+    dGeomID iPlaneTop;
+
+    /**
+     * ODE bottom plane.
+     */
+    dGeomID iPlaneBottom;
+
+    /**
+     * ODE left plane.
+     */
+    dGeomID iPlaneLeft;
+
+    /**
+     * ODE right plane.
+     */
+    dGeomID iPlaneRight;
+
+    /**
+     * ODE friction plane.
+     */
+    dGeomID iPlaneFriction;
+
+    /**
+     * ODE view box geom.
+     */
+    dGeomID iViewBox;
+
+    /**
+     * ODE view box body.
+     */
+    dBodyID iViewBody;
+
+    /**
+     * Collision state.
+     */
+    TAknPhysicsCollision iCollision;
+    
+    /**
+     * Friction value.
+     */
+    TReal iFriction;
+
+    /**
+     * Pointer to CAknPhysics.
+     * Not own.
+     */
+    CAknPhysics* iPhysics;
+    
+    /**
+     * View position.
+     */
+    TPoint iViewPosition;
+
+    /**
+     * Client to Alf, used for FPS logging.
+     * Own.
+     */
+    RAlfDirectClient* iAlfClient;
+    
+    /**
+     * Using application's UID. Used for FPS logging.
+     */
+    TUid iLogUid;
+    };
+
+#endif // C_AKNPHYSICSENGINE_H