/*+
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* Copyright (c) 2008 Nokia Corporation and/or its subsidiary(-ies).+
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* All rights reserved.+
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* This component and the accompanying materials are made available+
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* under the terms of "Eclipse Public License v1.0"+
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* which accompanies this distribution, and is available+
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* at the URL "http://www.eclipse.org/legal/epl-v10.html".+
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*+
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* Initial Contributors:+
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* Nokia Corporation - initial contribution.+
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*+
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* Contributors:+
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*+
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* Description:  Array of points+
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*+
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*/+
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+
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#ifndef _POINTARRAY_H_+
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#define _POINTARRAY_H_+
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+
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#include <e32std.h>+
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+
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namespace GestureHelper+
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{+
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+
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/** +
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 * Represents a single point given at certain time+
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 */+
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struct TPointEntry +
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    {+
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    /** constructor */+
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    inline TPointEntry( const TPoint& aPos, const TTime& aTime ) +
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            : iPos( aPos ), iTime( aTime )+
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        {+
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        }+
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    +
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    TPoint iPos;+
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    TTime iTime;+
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    };+
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    +
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/**+
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 * Array of points that wraps another point array+
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 * The purpose of this class is to allow deriving classes to override []+
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 * and in that member function adjust the point, e.g., by setting one+
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 * axis to always a constant value. This allows providing a sequence of+
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 * points to the recogniser in which the other axis is ignored.+
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 */+
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NONSHARABLE_CLASS( TPointArray )+
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    {+
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public:+
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    /** +
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     * @param aPoints points array to wrap (and filter)+
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     */+
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    TPointArray( const RArray< TPointEntry >& aPoints ); +
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    /** @returns length of the array */+
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    TInt Count() const;+
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    /** +
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     * @returns a filtered point at aIndex. Default implementation same+
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     *          as Raw(...)+
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     * virtual so deriving classes can modify the point (e.g., filter one axis)+
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     */+
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    virtual TPoint operator[]( TInt aIndex ) const;+
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    /** @returns an raw, non-filtered point at aIndex */+
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    TPoint Raw( TInt aIndex ) const;+
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    +
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private:+
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    const RArray< TPointEntry >& iPoints;+
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    };+
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+
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} // namespace GestureHelper+
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+
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#endif // _POINTARRAY_H_+
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