--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/qstmgesturelib/recognisers/qstmhoveringgesturerecogniser.cpp	Tue May 04 12:39:35 2010 +0300
@@ -0,0 +1,147 @@
+/*
+* 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 "qstmhoveringgesturerecogniser.h"
+#include "qstmgenericsimplegesture.h"
+#include "qstmuievent_if.h"
+#include "qstmfilelogger.h"
+
+using namespace qstmGesture ;
+
+QStm_HoveringGestureRecogniser::QStm_HoveringGestureRecogniser(QStm_GestureListenerIf* listener) :
+                                QStm_GestureRecogniser(listener)
+{
+    m_hovering = false ;
+    m_hoveringspeed = 0.9f ;
+}
+
+QStm_HoveringGestureRecogniser::~QStm_HoveringGestureRecogniser()
+{
+}
+
+QStm_GestureRecognitionState QStm_HoveringGestureRecogniser::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 hovering
+    if (numOfActiveStreams == 1)  {
+        // 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 (countOfEvents > 1) {// do we have more than one event in the stream?
+            // Then look at the events to see if they are suitable for us
+            // should we check that all of the events are targeted to our window?
+            // currently we only check if the last one is for us and is EMove, then we pan...
+            if (puie->target() == m_powner &&
+                    eventCode == qstmUiEventEngine::EMove) {// The last one is move in our window
+                float speed = puie->speed() ;
+                if (m_loggingenabled) {
+                    LOGARG("QStm_HoveringGestureRecogniser: %d: num %d code %d, speed %f, limit %f",
+                            m_hovering, countOfEvents, eventCode, double(speed), double(m_hoveringspeed));
+                }
+                // It might be hovering gesture in our window, handle it
+                if (!m_hovering) {
+                    // we are not yet hovering, so lets see if it is slow movement
+                    // but it must be movement; if it is 0.0 do not hover
+                    if (speed > 0.01f && speed < m_hoveringspeed) {
+                        state = EGestureActive;
+                        m_hovering = true;
+                    }
+                }
+                if (m_hovering) {
+                    // after we've started hovering, the speed could be increased a little before we loose hovering
+                    // but this adjustment is not implemented now...
+                    if (speed < m_hoveringspeed) {
+                        using qstmUiEventEngine::QStm_UiEventSpeed;
+
+                        state = EGestureActive;
+                        QStm_UiEventSpeed speedIf(speed);
+                        qstmGesture::QStm_DirectionalGesture pgest(
+                                        KUid,
+                                        puie->currentXY(),
+                                        puie->previousXY(),
+                                        &speedIf,
+                                        m_loggingenabled);
+
+                        pgest.setTarget(puie->target());                        // Call the listener to inform that a Hover has occurred...
+                        m_listener->gestureEnter(pgest);
+                    }
+                }
+            }
+            else if (m_hovering) {
+                if (eventCode == qstmUiEventEngine::ERelease) {  // The last one is release in any window
+                    m_hovering = false ;
+                    // release will handle informing of the listener
+                }
+            }
+        }
+        else  {
+            // count of events == 1, lets see if it is EMove, then we take it and start hovering
+            if (puie->target() == m_powner &&
+                    eventCode == qstmUiEventEngine::EMove) {// The only one is move in our window
+                if (m_loggingenabled) {
+                    LOGARG("QStm_HoveringGestureRecogniser: move: num %d code %d", countOfEvents, eventCode);
+                }
+                state = EGestureActive;
+                qstmGesture::QStm_DirectionalGesture pgest(
+                                        KUid,
+                                        puie->currentXY(),
+                                        puie->previousXY(),
+                                        puie,
+                                        m_loggingenabled);
+                pgest.setTarget(puie->target());
+
+                // Call the listener to inform that a Hover has occurred...
+                m_listener->gestureEnter(pgest);
+            }
+        }
+    }
+    if (state == ENotMyGesture) {
+        // if it was not our gesture, then the state can not be hovering...
+        m_hovering = false ;
+    }
+    m_state = state;
+    return state;
+}
+
+void QStm_HoveringGestureRecogniser::release(QStm_GestureEngineIf* pge)
+{
+    m_hovering = false ;
+	const qstmUiEventEngine::QStm_UiEventIf* puie = pge->getUiEvents(0);
+    using qstmUiEventEngine::QStm_UiEventSpeed;
+    qstmGesture::QStm_DirectionalGesture pgest(
+                    KUid,
+                    puie->currentXY(),
+                    puie->previousXY(),
+                    puie,
+                    m_loggingenabled);
+    pgest.setTarget(puie->target());
+	
+    m_listener->gestureExit(pgest) ;
+    m_state = ENotMyGesture;
+}
+
+void QStm_HoveringGestureRecogniser::setHoveringSpeed(float aSpeed) /*__SOFTFP */
+{
+    m_hoveringspeed = aSpeed ;
+}
+