--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/qstmgesturelib/recognisers/qstmmaybetapgesturerecogniser.cpp	Fri Oct 15 17:30:59 2010 -0400
@@ -0,0 +1,165 @@
+/*
+* 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 "qstmmaybetapgesturerecogniser.h"
+#include "qstmuievent_if.h"
+#include "qstmutils.h"
+#include "qstmfilelogger.h"
+
+using namespace qstmGesture ;
+using namespace qstmUiEventEngine;
+
+QStm_MaybeTapGestureRecogniser::QStm_MaybeTapGestureRecogniser(QStm_GestureListenerIf* listener) :
+                                        QStm_GestureRecogniser(listener)
+{
+    m_powner = listener->getOwner() ;
+    if (listener) {
+        addTapListener(listener, m_powner) ;
+    }
+    m_gestureEnabled = true;
+    m_numOfActiveStreams = 0;
+
+}
+
+QStm_MaybeTapGestureRecogniser::~QStm_MaybeTapGestureRecogniser()
+{
+    m_tapListeners.clear() ;
+    m_tapListenerWindows.clear() ;
+}
+
+QStm_GestureRecognitionState QStm_MaybeTapGestureRecogniser::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 a tap or double tap
+    if (numOfActiveStreams == 1) {
+        m_numOfActiveStreams = numOfActiveStreams; 
+        // Then look at the event stream, it has to be tap and release
+        const qstmUiEventEngine::QStm_UiEventIf* puie = pge->getUiEvents(0);
+        int countOfEvents = puie->countOfEvents() ;
+        qstmUiEventEngine::QStm_UiEventCode eventCode = puie->code() ;
+
+        if (m_loggingenabled) {
+            LOGARG("QStm_MaybeTapGestureRecogniser: event: %s, countOfEvents: %d, code: %d", 
+                   event_name(eventCode), countOfEvents, eventCode);
+        }
+        void* target = puie->target();
+        
+        if (countOfEvents == 2) { // Do we have touch and release in the stream, check if there are two events
+
+            // Then look at the events to see if they are suitable for us
+            if (target && eventCode == qstmUiEventEngine::ERelease) {// The last one is release
+
+                qstmUiEventEngine::QStm_UiEventIf* puieFirst = puie->previousEvent();
+
+                if (puieFirst != NULL && 
+                    (eventCode = puieFirst->code()) == qstmUiEventEngine::ETouch && // is the first one ETouch
+                    isPointClose(puie->currentXY(), puie->previousXY())) { // if system failed to deliver move event between 
+                	                                                       // down and up we can get tap with two points
+                	                                                       // too far from each other, so check for it
+
+                    if (m_loggingenabled) {
+                        LOGARG("QStm_MaybeTapGestureRecogniser: 0x%x TAP: countOfEvents: %d, event: %s", this, countOfEvents, event_name(eventCode));
+                    }
+                    
+                    m_firstTapXY = puieFirst->currentXY() ;
+                    m_firstTapTarget = target ;
+                    m_firstTapSpeed = puie->speed() ;
+                    int inx = m_tapListenerWindows.indexOf(m_firstTapTarget) ;
+                    if (inx == -1) {
+                        inx = 0;
+                    }
+                    qstmGesture::QStm_GenericSimpleGesture pgest(
+                                        qstmGesture::EGestureUidMaybeTap, 
+                                        m_firstTapXY, 
+                                        puie->timestamp(),
+                                        qstmGesture::ETapTypeSingle, 
+                                        puieFirst) ; // TODO: speed is 0?
+                                    pgest.setTarget(puie->target());
+                                    QStm_GestureListenerIf* plistener = m_tapListeners[inx] ;
+                                    plistener->gestureEnter(pgest) ;
+                }
+            }
+        }
+    }
+    m_state = state;
+    return state;
+}
+
+void QStm_MaybeTapGestureRecogniser::release(QStm_GestureEngineIf* /*ge*/)
+{
+    if (m_loggingenabled) {
+        LOGARG("QStm_MaybeTapGestureRecogniser: 0x%x release, %d %d", this, m_firstTapXY.x(), m_firstTapXY.y());
+    }
+    m_state = ENotMyGesture;
+}
+
+void QStm_MaybeTapGestureRecogniser::enableLogging(bool loggingOn)
+{
+    m_loggingenabled = loggingOn;
+}
+
+void QStm_MaybeTapGestureRecogniser::setOwner(void* owner)
+{
+    m_powner = owner;
+}
+
+
+void QStm_MaybeTapGestureRecogniser::enable(bool enabled)
+{
+    m_gestureEnabled = enabled ;
+}
+
+bool QStm_MaybeTapGestureRecogniser::isEnabled()
+{
+    return m_gestureEnabled ;
+}
+
+void QStm_MaybeTapGestureRecogniser::setTapRange(int rangeInMillimetres)
+{
+    m_rangesizeInPixels = QStm_Utils::mm2Pixels(rangeInMillimetres) ;
+}
+
+bool QStm_MaybeTapGestureRecogniser::isPointClose(const QPoint&  firstPoint, const QPoint& secondPoint)
+{
+    QRect tolerance = QStm_Utils::toleranceRectPx(secondPoint, m_rangesizeInPixels) ;
+    bool aretheyclose = tolerance.contains(firstPoint);
+    return aretheyclose ;
+}
+
+void QStm_MaybeTapGestureRecogniser::addTapListener(QStm_GestureListenerIf* listener, void* listenerOwner)
+{
+    m_tapListeners.append(listener) ;
+    m_tapListenerWindows.append(listenerOwner) ;
+}
+
+void QStm_MaybeTapGestureRecogniser::removeTapListener(QStm_GestureListenerIf* listener, void* /*listenerOwner*/)
+{
+    int inx = m_tapListeners.indexOf(listener) ;
+    if(inx != -1) {
+        m_tapListeners.removeAt(inx) ;
+        m_tapListenerWindows.removeAt(inx) ;
+    }
+}
+