1 /*

     2 * Copyright (c) 2008 Nokia Corporation and/or its subsidiary(-ies).

     3 * All rights reserved.

     4 * This component and the accompanying materials are made available

     5 * under the terms of the License "Eclipse Public License v1.0"

     6 * which accompanies this distribution, and is available

     7 * at the URL "http://www.eclipse.org/legal/epl-v10.html".

     8 *

     9 * Initial Contributors:

    10 * Nokia Corporation - initial contribution.

    11 *

    12 * Contributors:

    13 *

    14 * Description:Hover Gesture Recognizer

    15 *

    16 */

    17 

    18 #ifndef HOVERINGGESTURERECOGNISER_H_

    19 #define HOVERINGGESTURERECOGNISER_H_

    20 

    21 #include "rt_gestureengineif.h"

    22 #include <rt_gestureif.h>

    23 #include <rt_gesturelistener.h>

    24 

    25 class CCoeControl ;

    26 

    27 namespace stmGesture

    28 {

    29 /*!

    30  * Recognise hovering gesture.

    31  * If the EMove distance from previous is short enough, then

    32  * we assume hovering gesture.  If the previous UI event is ETouch, EHold or EMove

    33  * and the distance is short enough the gesture takes control.

    34  */

    35 NONSHARABLE_CLASS( CHoveringGestureRecogniser ): public CGestureRecogniser

    36 {

    37 public:

    38     static const TGestureUid KUid = EGestureUidHover;

    39 

    40     static CHoveringGestureRecogniser* NewL(MGestureListener* aListener);

    41 

    42     virtual ~CHoveringGestureRecogniser();

    43     /*!

    44      * MGestureRecogniserIf methods

    45      */

    46     virtual TGestureRecognitionState recognise(int numOfActiveStreams, MGestureEngineIf* ge) ;

    47     virtual void release(MGestureEngineIf* ge) ;

    48 

    49     virtual TGestureUid gestureUid() const

    50         {

    51         return KUid;

    52         }

    53 

    54     void setHoveringSpeed(float aSpeed) __SOFTFP ;

    55 

    56 private:

    57     CHoveringGestureRecogniser(MGestureListener* aListener) ;

    58     bool m_hovering ;

    59     float m_hoveringspeed ;

    60 };

    61 

    62 }

    63 

    64 #endif /* HOVERINGGESTURERECOGNISER_H_ */