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:  Gesture helper implementation

    15 *

    16 */

    17 

    18 #include "GenericSimpleGesture.h"

    19 #include "unknowngesturerecogniser.h"

    20 #include "rt_uievent.h"

    21 #include "filelogger.h"

    22 

    23 using namespace stmGesture ;

    24 

    25 CUnknownGestureRecogniser::CUnknownGestureRecogniser(MGestureListener* aListener) :

    26     CGestureRecogniser(aListener)

    27 {

    28 }

    29 

    30 CUnknownGestureRecogniser* CUnknownGestureRecogniser::NewL(MGestureListener* aListener)

    31 {

    32     CUnknownGestureRecogniser* self = new (ELeave) CUnknownGestureRecogniser(aListener) ;

    33     return self;

    34 }

    35 

    36 CUnknownGestureRecogniser::~CUnknownGestureRecogniser()

    37 {

    38 }

    39 

    40 /*!

    41  * recognise the long press; basically it is just the EHold UI event

    42  */

    43 TGestureRecognitionState CUnknownGestureRecogniser::recognise(int numOfActiveStreams,

    44         MGestureEngineIf* pge)

    45 {

    46     TGestureRecognitionState state = ENotMyGesture;

    47     // Check if we are enabled or not

    48     if (!m_gestureEnabled) return state ;

    49 

    50 

    51     // Look at the events to see if it looks like long press with one pointer

    52     if (numOfActiveStreams == 1)

    53     {

    54         // Then look at the event stream, it has to be EHold

    55         const stmUiEventEngine::MUiEvent* puie = pge->getUiEvents(0);

    56         int countOfEvents = puie->countOfEvents();

    57         stmUiEventEngine::TUiEventCode eventCode = puie->Code();

    58 

    59         if (m_loggingenabled)

    60         {

    61             LOGARG("CUnknownGestureRecogniser: %d num %d code %d", eventCode, countOfEvents, eventCode);

    62         }

    63         if (puie->Target() == m_powner && eventCode == stmUiEventEngine::ERelease) // The last one is ERelease

    64         {

    65             const TPoint& currentXY = puie->CurrentXY() ;

    66             if (m_loggingenabled)

    67             {

    68                 LOGARG("CUnknownGestureRecogniser: (%d, %d) ", currentXY.iX, currentXY.iY) ;

    69             }

    70             state = EGestureActive ;

    71             // issue the gesture

    72             stmGesture::TGenericSimpleGesture pgest(KUid, currentXY, 0, puie) ;

    73             // Call the listener to inform that a gesture has occurred...

    74             m_listener->gestureEnter(pgest) ;

    75         }

    76     }

    77     return state;

    78 }

    79 

    80 void CUnknownGestureRecogniser::release(MGestureEngineIf* /*ge*/)

    81 {

    82     if (m_loggingenabled)

    83     {

    84         LOGARG("CUnknownGestureRecogniser: 0x%x release", this);

    85     }

    86 }

    87