diff -r 000000000000 -r 2f259fa3e83a uifw/EikStd/dlginc/aknformphysics.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/uifw/EikStd/dlginc/aknformphysics.h	Tue Feb 02 01:00:49 2010 +0200
@@ -0,0 +1,265 @@
+/*
+* 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:    Class to store physics related data in forms.
+*
+*/
+
+
+
+
+#ifndef C_CAKNFORMPHYSICS_H
+#define C_CAKNFORMPHYSICS_H
+
+
+#include <e32base.h>
+#include <aknphysicsobserveriface.h>
+
+
+class CAknPhysics;
+class CEikDialogPage;
+class CAknRecordingGc;
+
+/**
+ *  ?one_line_short_description
+ *  ?more_complete_description
+ *
+ *  @code
+ *   ?good_class_usage_example(s)
+ *  @endcode
+ *
+ *  @lib ?library
+ *  @since S60 ?S60_version *** for example, S60 v3.0
+ */
+NONSHARABLE_CLASS( CAknFormPhysics ) : public CBase, public MAknPhysicsObserver
+    {
+public:
+
+    /**
+    * Two-phased constructor.
+    */
+    static CAknFormPhysics* NewL( CEikDialogPage& aParent, CAknRecordingGc& aRecordingGc );
+
+    /**
+    * Destructor.
+    */
+    virtual ~CAknFormPhysics();
+    
+    /**
+    * Initializes physics engine.
+    *
+    * @since S60 v5.0
+    * @param aWorldSize Collected size of all form items.
+    * @param aViewSize View's size i.e. size of form's rect.
+    * @param aViewCenter View center's initial position.
+    */
+    void InitPhysicsL( const TSize& aWorldSize, const TSize& aViewSize, const TPoint& aViewCenter );
+    
+    /**
+    * Stops the physics engine.
+    *
+    * @since S60 v5.0
+    */
+    void Stop();
+
+    /**
+    * Starts the physics engine.
+    *
+    * @since S60 v5.0
+    * @param aLength Length of the flick on display (in pixels).
+    * @param aStartTime Flick's start time.
+    * @return ETrue if flicking was started.
+    */
+    TBool StartFlick( const TPoint& aLength, const TTime& aStartTime );
+    
+    /**
+    * Returns highlight timeout. Tapped item should be activated only after a small delay.
+    *
+    * @since S60 v5.0
+    * @return Highlight delay.
+    */
+    TInt HighlightDelay() const;
+    
+    
+    /**
+    * Return drag event's treshold.
+    *
+    * @since S60 v5.0
+    * @return Drag treshold in pixels.
+    */
+    TInt DragThreshold() const;
+    
+
+    /**
+    * Returns current view size.
+    *
+    * @since S60 v5.0
+    * @return View size.
+    */
+    TSize ViewSize() const;
+
+    /**
+    * Registers panning position to physics.
+    *
+    * @since S60 v5.0
+    * @aPosition Position delta.
+    */
+    void SetPanningPosition( const TPoint& aDelta );
+    
+public: // From base class MAknPhysicsObserver.
+
+    /**
+     * Called when view position changes.
+     *
+     * @param  aNewPosition  The new position of the view.
+     * @param  aDrawNow      @c ETrue if the screen is to be redrawn,
+     *                       otherwise @c EFalse.
+     * @param  aFlags        Additional flags, not used currently.
+     */
+    virtual void ViewPositionChanged( const TPoint& aNewPosition,
+                                      TBool aDrawNow = ETrue,
+                                      TUint aFlags = 0 );
+    
+    /**
+     * Physics emulation has stopped moving the view.
+     *
+     * @since S60 v5.0
+     */
+    virtual void PhysicEmulationEnded();        
+
+    /**
+     * Returns the observer's view position.
+     *
+     * @since S60 v5.0
+     *
+     * @return Physics observer's view position.
+     */
+    virtual TPoint ViewPosition() const;
+
+public: // New methods
+    
+    /**
+     * Checks whether the physics engine can be stopped.
+     *
+     * @since S60 v5.0
+     * @return ETrue if the physics engine can be stopped.
+     */
+    TBool CanBeStopped() const;
+        
+    /**
+     * Returns CAknPhysics action code i.e. which action CAknPhysics 
+     * is currently performing.
+     *
+     * @since S60 v5.2
+     * @return TAknPhysicsAction type action code.
+     */
+    TInt OngoingPhysicsAction() const;
+        
+    /**
+     * Returns view's top y coordinate.
+     * 
+     * @since S60 v5.0
+     * @return View's top y coordinate in pixels, relative to 0. 
+     */
+    TInt ViewTopY() const;
+    
+    /**
+     * Returns distance from view's top to its center. In other words,
+     * ViewPosition() == ViewTopY() + ViewDistance().
+     * 
+     * @since S60 v5.0
+     * @return Distance from view's top y to its center.
+     */
+    TInt ViewCenterDistance() const;
+    
+    /**
+     * Sets view center position.
+     * 
+     * @since S60 v5.0
+     */
+    void SetViewCenter( const TPoint& aPosition );
+    
+    /**
+     * Return view center position.
+     * 
+     * @since S60 v5.0
+     * @return View center.
+     */
+    TPoint ViewCenter() const;
+    
+private:
+
+    /**
+    * Constructor.
+    */
+    CAknFormPhysics( CEikDialogPage& aParent, CAknRecordingGc& aRecordingGc );
+    
+    /**
+    * Second stage constructor.
+    */
+    void ConstructL();
+
+    /**
+    * Checks whether panning and flicking are allowed with current world and
+    * view sizes.
+    *
+    * @since S60 v5.0
+    * @return ETrue if allowed.
+    */
+    TBool PhysicsAllowed() const;
+
+private: // data
+    /**
+    * Center of the "view" (the visible window to the whole form i.e. form's
+    * virtual rect).
+    */
+    TPoint iViewCenter;
+
+    /**
+     * Interface to the physics engine.
+     * Own.
+     */
+    CAknPhysics* iPhysics;
+    
+    /**
+    * Dialog page whose scrolling is controlled by this class.
+    */
+    CEikDialogPage& iParent;
+
+    /**
+    * Graphics context used to cache drawing commands.
+    */
+    CAknRecordingGc& iRecordingGc;
+    
+    /**
+    * Size of the "world".
+    */
+    TSize iWorldSize;
+    
+    /**
+    * View size.
+    */
+    TSize iViewSize;
+    
+    /**
+    * Benchmark timestamp.
+    */
+    TTime iStartTime;
+    
+    /**
+    * Benchmark frame counter.
+    */
+    TInt iFrameCount;
+    };
+
+#endif // C_CAKNFORMPHYSICS_H