diff -r 000000000000 -r f72a12da539e idlehomescreen/xmluirendering/uiengine/inc/xnpointarray.h --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/idlehomescreen/xmluirendering/uiengine/inc/xnpointarray.h Thu Dec 17 08:40:49 2009 +0200 @@ -0,0 +1,101 @@ +/* +* Copyright (c) 2008 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: Array of points +* +*/ + + +#ifndef _XNPOINTARRAY_H_ +#define _XNPOINTARRAY_H_ + +// System includes +#include + +/** + * XnGestureHelper namespace + * Used for the whole gesture family - Gesture recognizer, gesture helper, + * Point array + */ +namespace XnGestureHelper + { + + /** + * Represents a single point given at certain time + */ + struct TXnPointEntry + { + + /** constructor */ + inline TXnPointEntry( const TPoint& aPos, const TTime& aTime ); + + TPoint iPos; + TTime iTime; + }; + + /** + * Array of points that wraps another point array + * The purpose of this class is to allow deriving classes to override [] + * and in that member function adjust the point, e.g., by setting one + * axis to always a constant value. This allows providing a sequence of + * points to the recogniser in which the other axis is ignored. + * + * @ingroup group_xnlayoutengine + */ + NONSHARABLE_CLASS( TXnPointArray ) + { + public: + + /** + * Constructor + * + * @param aPoints points array to wrap (and filter) + */ + TXnPointArray( const RArray< TXnPointEntry >& aPoints ); + + /** + * Length of the array + * + * @return Length of the array + */ + TInt Count() const; + + /** + * Returns point at position, may be filtered + * virtual so deriving classes can modify the point + * (e.g., filter one axis) + * + * @return A filtered point at aIndex. Default implementation same + * as Raw(...) + */ + virtual TPoint operator[]( TInt aIndex ) const; + + /** + * Nonfiltered index + * + * @return An raw, non-filtered point at aIndex + */ + const TPoint& Raw( TInt aIndex ) const; + + private: + + /** Array of points, Not owned */ + const RArray< TXnPointEntry >& iPoints; + }; + } // namespace XnGestureHelper + + +// Inline functions +#include "xnpointarray.inl" + +#endif // _XNPOINTARRAY_H_