--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/qstmgesturelib/recognisers/qstmedgescrollgesturerecogniser.cpp	Tue May 04 12:39:35 2010 +0300
@@ -0,0 +1,144 @@
+/*
+* Copyright (c) 2010 Nokia Corporation and/or its subsidiary(-ies).
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of "Eclipse Public License v1.0"
+* which accompanies this distribution, and is available
+* at the URL "http://www.eclipse.org/legal/epl-v10.html".
+*
+* Initial Contributors:
+* Nokia Corporation - initial contribution.
+*
+* Contributors:
+*
+* Description: 
+*
+*/
+
+#include "qstmedgescrollgesturerecogniser.h"
+#include "qstmgenericsimplegesture.h"
+#include "qstmuievent_if.h"
+#include "qstmfilelogger.h"
+
+
+using namespace qstmGesture ;
+
+QStm_EdgeScrollGestureRecogniser::QStm_EdgeScrollGestureRecogniser(QStm_GestureListenerIf* listener) :
+                                   QStm_GestureRecogniser(listener),
+                                   m_listener(listener) , m_area()
+{
+    m_powner = listener->getOwner() ;
+    m_gestureEnabled = true ;
+    m_rangesizeInPixels = 10 ;  // by default 10 pixels from the edges is the area
+}
+
+
+QStm_EdgeScrollGestureRecogniser::~QStm_EdgeScrollGestureRecogniser()
+{
+}
+
+QStm_GestureRecognitionState QStm_EdgeScrollGestureRecogniser::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 edge scroll 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_EdgeScrollGestureRecogniser: %d num %d code %d", eventCode, countOfEvents, eventCode);
+        }
+
+        if (eventCode == qstmUiEventEngine::EHold) { // The last one is EHold, look if it is near the area defined
+            const QPoint& p = puie->currentXY();
+            if (m_loggingenabled) {
+                LOGARG("QStm_EdgeScrollGestureRecogniser: 0x%x EHold: num %d code %d, %d", 
+                		this, countOfEvents, p.x(), p.y());
+                LOGARG("QStm_EdgeScrollGestureRecogniser: area, %d,%d %d,%d, range: %d", 
+                		m_area.x(), m_area.y(), m_area.x() + m_area.width(), m_area.y() + m_area.height(), 
+                		m_rangesizeInPixels);
+            }
+            // check where the point is inside the area defined but outside of the area shrunk by m_rangesizeInPixels.
+            QRect rcInner(QPoint(0,0), m_area.size() - QSize(m_rangesizeInPixels, m_rangesizeInPixels));
+            rcInner.moveCenter(m_area.center()) ;
+            if (m_area.contains(p) && !rcInner.contains(p))
+            {
+                if (m_loggingenabled) {
+                    LOGARG("QStm_EdgeScrollGestureRecogniser: HIT, (%d,%d) in %d,%d %d,%d, range: %d", 
+                    		p.x(), p.y(), m_area.x(), m_area.y(), 
+                    		m_area.x() + m_area.width(), m_area.y() + m_area.height(),
+                    		m_rangesizeInPixels);
+                }
+
+                state = EGestureActive ;
+                // this is edge scroll, check where it is about...
+                QStm_EdgeScroll scrolltype = EEdgeScrollUnknown ;
+                if (p.y() < m_area.y() + m_rangesizeInPixels)
+                    scrolltype = EEdgeScrollUp ;   // if Y is small enough, it is always up
+                else if (p.y() > m_area.y() + m_area.height() - m_rangesizeInPixels)
+                    scrolltype = EEdgeScrollDown ; // if Y is big enough, it is always down
+                else if (p.x() < m_area.x() + m_rangesizeInPixels)
+                    scrolltype = EEdgeScrollLeft ; // if X is small enough, it is always left
+                else  if (p.x() > m_area.x() + m_area.width() - m_rangesizeInPixels)
+                    scrolltype = EEdgeScrollRight ;   // if X is big enough, it is always right
+                // issue the edge scroll gesture
+                qstmGesture::QStm_GenericSimpleGesture pgest(KUid, p, scrolltype, puie) ;
+                pgest.setTarget(puie->target());
+                // Call the listener to inform that a Tap has occurred...
+                m_listener->gestureEnter(pgest) ;
+            }
+        }
+    }
+    m_state = state;
+    return state;
+}
+
+void QStm_EdgeScrollGestureRecogniser::release(QStm_GestureEngineIf* /*ge*/)
+{
+    if (m_loggingenabled) {
+        LOGARG("QStm_EdgeScrollGestureRecogniser: 0x%x release", this);
+    }
+    m_state = m_state = ENotMyGesture;
+}
+
+
+void QStm_EdgeScrollGestureRecogniser::enableLogging(bool loggingOn)
+{
+    m_loggingenabled = loggingOn;
+}
+
+void QStm_EdgeScrollGestureRecogniser::enable(bool enabled)
+{
+    m_gestureEnabled = enabled ;
+}
+
+bool QStm_EdgeScrollGestureRecogniser::isEnabled()
+{
+    return m_gestureEnabled ;
+}
+
+void QStm_EdgeScrollGestureRecogniser::setOwner(void* owner)
+{
+    m_powner = owner;
+}
+
+void QStm_EdgeScrollGestureRecogniser::setScrollRange(int rangeInPixels)
+{
+    m_rangesizeInPixels = rangeInPixels ;
+}
+
+void QStm_EdgeScrollGestureRecogniser::setArea(const QRect& theArea)
+{
+    m_area = theArea ;
+    if (m_loggingenabled)
+    {
+        LOGARG("QStm_EdgeScrollGestureRecogniser: set area, %d,%d %d,%d", 
+        		m_area.x(), m_area.y(), m_area.x() + m_area.width(), m_area.y() + m_area.height());
+    }
+}