/*

* Copyright (c) 2010 Nokia Corporation and/or its subsidiary(-ies).

* All rights reserved.

*

* This program is free software: you can redistribute it and/or modify

* it under the terms of the GNU Lesser General Public License as published by

* the Free Software Foundation, version 2.1 of the License.

* 

* This program is distributed in the hope that it will be useful,

* but WITHOUT ANY WARRANTY; without even the implied warranty of

* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

* GNU Lesser General Public License for more details.

*

* You should have received a copy of the GNU Lesser General Public License

* along with this program.  If not, 

* see "http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html/".

*

* Description:

*

*/

#include "qstmgenericsimplegesture.h"

#include "qstmlongpressgesturerecogniser.h"

#include "qstmuievent_if.h"

#include "qstmfilelogger.h"

using namespace qstmGesture ;

QStm_LongPressGestureRecogniser::QStm_LongPressGestureRecogniser(QStm_GestureListenerIf* listener) :

                                    QStm_GestureRecogniser(listener)

{

}

QStm_LongPressGestureRecogniser::~QStm_LongPressGestureRecogniser()

{

}

/*!

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

 */

QStm_GestureRecognitionState QStm_LongPressGestureRecogniser::recognise(int numOfActiveStreams,

                                 QStm_GestureEngineIf* pge)

{

    QStm_GestureRecognitionState state = m_state = ENotMyGesture;

    // Check if we are enabled or not

    if (!m_gestureEnabled) return state ;

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

    if (numOfActiveStreams == 1) {

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

        const qstmUiEventEngine::QStm_UiEventIf* puie = pge->getUiEvents(0);

        int countOfEvents = puie->countOfEvents();

        qstmUiEventEngine::QStm_UiEventCode eventCode = puie->code();

        if (m_loggingenabled) {

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

        }

        	// The last one is EHold, look if it is near our borders

            const QPoint& p = puie->currentXY() ;

            if (m_loggingenabled) {

                LOGARG("QStm_LongPressGestureRecogniser: (%d, %d) in (%d,%d)(%d,%d)", p.x(), p.y(),

                        m_area.x(), m_area.y(), m_area.x() + m_area.width(), m_area.y() + m_area.height());

            }

            // check where the point is inside the area defined

            if (m_area.contains(p)) {

                state = EGestureActive ;

                // issue the long press gesture

                pgest.setTarget(puie->target());

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

                m_listener->gestureEnter(pgest) ;

            }

        }

    }

    m_state = state;

    return state;

}

void QStm_LongPressGestureRecogniser::release(QStm_GestureEngineIf* /*ge*/)

{

    if (m_loggingenabled) {

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

    }

    m_state = ENotMyGesture;

}

void QStm_LongPressGestureRecogniser::setArea(const QRect& theArea)

{

    m_area = theArea ;

}