author | hgs |
Mon, 12 Jul 2010 15:46:53 -0400 (2010-07-12) | |
changeset 7 | a1f515018ac1 |
parent 3 | 0954f5dd2cd0 |
child 16 | 3c88a81ff781 |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2010 Nokia Corporation and/or its subsidiary(-ies). |
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* All rights reserved. |
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* |
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* This program is free software: you can redistribute it and/or modify |
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* it under the terms of the GNU Lesser General Public License as published by |
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* the Free Software Foundation, version 2.1 of the License. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU Lesser General Public License for more details. |
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* |
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* You should have received a copy of the GNU Lesser General Public License |
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* along with this program. If not, |
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* see "http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html/". |
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* |
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* Description: |
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* |
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*/ |
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#include "qstmedgescrollgesturerecogniser.h" |
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#include "qstmgenericsimplegesture.h" |
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#include "qstmuievent_if.h" |
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#include "qstmfilelogger.h" |
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using namespace qstmGesture ; |
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QStm_EdgeScrollGestureRecogniser::QStm_EdgeScrollGestureRecogniser(QStm_GestureListenerIf* listener) : |
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QStm_GestureRecogniser(listener), |
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m_listener(listener) , m_area() |
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{ |
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m_powner = listener->getOwner() ; |
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m_gestureEnabled = true ; |
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m_rangesizeInPixels = 10 ; // by default 10 pixels from the edges is the area |
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} |
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QStm_EdgeScrollGestureRecogniser::~QStm_EdgeScrollGestureRecogniser() |
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{ |
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} |
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QStm_GestureRecognitionState QStm_EdgeScrollGestureRecogniser::recognise(int numOfActiveStreams, |
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QStm_GestureEngineIf* pge) |
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{ |
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QStm_GestureRecognitionState state = m_state = ENotMyGesture; |
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// Check if we are enabled or not |
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if (!m_gestureEnabled) return state ; |
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// Look at the events to see if it looks like edge scroll with one pointer |
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if (numOfActiveStreams == 1) { |
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// Then look at the event stream, it has to be EHold |
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const qstmUiEventEngine::QStm_UiEventIf* puie = pge->getUiEvents(0); |
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int countOfEvents = puie->countOfEvents(); |
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qstmUiEventEngine::QStm_UiEventCode eventCode = puie->code(); |
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if (m_loggingenabled) { |
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LOGARG("QStm_EdgeScrollGestureRecogniser: %d num %d code %d", eventCode, countOfEvents, eventCode); |
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} |
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if (eventCode == qstmUiEventEngine::EHold) { // The last one is EHold, look if it is near the area defined |
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const QPoint& p = puie->currentXY(); |
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if (m_loggingenabled) { |
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LOGARG("QStm_EdgeScrollGestureRecogniser: 0x%x EHold: num %d code %d, %d", |
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this, countOfEvents, p.x(), p.y()); |
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LOGARG("QStm_EdgeScrollGestureRecogniser: area, %d,%d %d,%d, range: %d", |
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m_area.x(), m_area.y(), m_area.x() + m_area.width(), m_area.y() + m_area.height(), |
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m_rangesizeInPixels); |
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} |
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// check where the point is inside the area defined but outside of the area shrunk by m_rangesizeInPixels. |
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QRect rcInner(QPoint(0,0), m_area.size() - QSize(m_rangesizeInPixels, m_rangesizeInPixels)); |
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rcInner.moveCenter(m_area.center()) ; |
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if (m_area.contains(p) && !rcInner.contains(p)) |
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{ |
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if (m_loggingenabled) { |
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LOGARG("QStm_EdgeScrollGestureRecogniser: HIT, (%d,%d) in %d,%d %d,%d, range: %d", |
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p.x(), p.y(), m_area.x(), m_area.y(), |
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m_area.x() + m_area.width(), m_area.y() + m_area.height(), |
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m_rangesizeInPixels); |
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} |
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state = EGestureActive ; |
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// this is edge scroll, check where it is about... |
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QStm_EdgeScroll scrolltype = EEdgeScrollUnknown ; |
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if (p.y() < m_area.y() + m_rangesizeInPixels) |
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scrolltype = EEdgeScrollUp ; // if Y is small enough, it is always up |
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else if (p.y() > m_area.y() + m_area.height() - m_rangesizeInPixels) |
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scrolltype = EEdgeScrollDown ; // if Y is big enough, it is always down |
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else if (p.x() < m_area.x() + m_rangesizeInPixels) |
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scrolltype = EEdgeScrollLeft ; // if X is small enough, it is always left |
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else if (p.x() > m_area.x() + m_area.width() - m_rangesizeInPixels) |
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scrolltype = EEdgeScrollRight ; // if X is big enough, it is always right |
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// issue the edge scroll gesture |
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qstmGesture::QStm_GenericSimpleGesture pgest(KUid, p, scrolltype, puie) ; |
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pgest.setTarget(puie->target()); |
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// Call the listener to inform that a Tap has occurred... |
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m_listener->gestureEnter(pgest) ; |
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} |
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} |
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} |
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m_state = state; |
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return state; |
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} |
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void QStm_EdgeScrollGestureRecogniser::release(QStm_GestureEngineIf* /*ge*/) |
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{ |
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if (m_loggingenabled) { |
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LOGARG("QStm_EdgeScrollGestureRecogniser: 0x%x release", this); |
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} |
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m_state = m_state = ENotMyGesture; |
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} |
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void QStm_EdgeScrollGestureRecogniser::enableLogging(bool loggingOn) |
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{ |
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m_loggingenabled = loggingOn; |
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} |
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void QStm_EdgeScrollGestureRecogniser::enable(bool enabled) |
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{ |
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m_gestureEnabled = enabled ; |
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} |
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bool QStm_EdgeScrollGestureRecogniser::isEnabled() |
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{ |
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return m_gestureEnabled ; |
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} |
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void QStm_EdgeScrollGestureRecogniser::setOwner(void* owner) |
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{ |
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m_powner = owner; |
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} |
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|
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void QStm_EdgeScrollGestureRecogniser::setScrollRange(int rangeInPixels) |
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{ |
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m_rangesizeInPixels = rangeInPixels ; |
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} |
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void QStm_EdgeScrollGestureRecogniser::setArea(const QRect& theArea) |
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{ |
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m_area = theArea ; |
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if (m_loggingenabled) |
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{ |
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LOGARG("QStm_EdgeScrollGestureRecogniser: set area, %d,%d %d,%d", |
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m_area.x(), m_area.y(), m_area.x() + m_area.width(), m_area.y() + m_area.height()); |
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} |
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} |