author | hgs |
Tue, 29 Jun 2010 00:46:29 -0400 | |
changeset 3 | 0954f5dd2cd0 |
parent 0 | 1450b09d0cfd |
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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#ifndef QSTMSTATEENGINE_H_ |
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#define QSTMSTATEENGINE_H_ |
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#include "qstmuievent_if.h" |
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#include "qstmtimerinterface.h" |
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#include "qstmstatemachine_v2.h" |
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#include "qstmstateengineconfig.h" |
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#include "qstmuievent.h" |
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#include <QtCore> |
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namespace qstmUiEventEngine |
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{ |
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class QStm_UiEvent; |
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/*! |
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* Define THwEvent since we need the point, the type and timestamp to be stored. |
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* The HW event is used also to handle the timer events so that the wrapper class calling the |
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* state machine will handle the starting, canceling etc. of the timers and the state machine |
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* sees the timers as messages. This hopefully makes it easier to keep the core state machine as |
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* OS agnostic as possible. |
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*/ |
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class QStm_HwEvent |
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{ |
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public: |
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QStm_HwEvent() {} ; |
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QStm_HwEvent(const QStm_HwEvent& ev): |
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m_type(ev.m_type), m_position(ev.m_position), |
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m_time(ev.m_time), m_target(ev.m_target), m_pointerNumber(ev.m_pointerNumber) {} |
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QStm_HwEvent(QStm_StateMachineEvent code, const QPoint& pos, QTime time, void* target, int pointerNr): |
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m_type(code), m_position(pos), |
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m_time(time), m_target(target), m_pointerNumber(pointerNr) {} |
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QStm_StateMachineEvent m_type ; |
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QPoint m_position ; |
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QTime m_time ; |
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void* m_target ; |
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int m_pointerNumber ; |
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}; |
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class QStm_StateEngine : public QObject |
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{ |
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public: |
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/** |
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* constructor and destructor |
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*/ |
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QStm_StateEngine(QStm_StateEngineConfiguration* config, QStm_TimerInterfaceIf* timerif, int index) ; |
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~QStm_StateEngine() ; |
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/** |
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* The methods needed for state machine |
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*/ |
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void consumeEvent() ; |
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bool isTouchTimer() ; |
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bool isHoldTimer() ; |
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bool isSuppressTimer() ; |
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bool isTouchTimeArea() ; |
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bool isTouchArea() ; |
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bool isHoldArea() ; |
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bool insideTouchTimeArea() ; |
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bool insideTouchArea() ; |
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bool insideHoldArea() ; |
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bool looksLikeHold() ; |
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void errorEvent() ; |
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void initTouchTimer() ; |
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void initHoldTimer() ; |
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void restartHoldTimer() ; |
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void initTouchSuppressTimer() ; |
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void initMoveSuppressTimer() ; |
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void clearTouchTimer() ; |
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void clearHoldTimer() ; |
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void clearSuppressTimer() ; |
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void produceTouch() ; |
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void produceMove() ; |
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void produceRelease() ; |
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void produceHold() ; |
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void renameToDrag() ; |
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void prepareTouchTimeArea() ; |
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void prepareTouchArea() ; |
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void prepareHoldArea() ; |
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void setCurrentPos() ; |
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void setGestureStart() ; |
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void addToTouch() ; |
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void addDraggingPos() ; |
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void storeMovePos() ; |
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bool insideMoveThreshold(); |
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/** |
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* The event interface |
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*/ |
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QStm_HwEvent& initEvent() |
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{ |
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m_hwe.m_pointerNumber = m_index; |
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return m_hwe; |
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} |
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// event returned by initEvent() must initialized first |
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bool handleStateEvent() ; |
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QRect getTouchArea() ; |
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QRect getHoldArea() ; |
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bool wasLastMessageFiltered() ; |
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127 |
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private: |
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bool m_eventConsumed ; |
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QStm_HwEvent m_hwe ; |
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bool isNewHoldingPoint() ; |
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QList<QStm_HwEvent*> m_dragPoints; // LATER: change this into std::vector |
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QStm_TimerInterfaceIf* m_timerif ; // |
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135 |
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QList<QStm_HwEvent> m_touchPoints; // LATER: change this into std::vector |
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137 |
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// Variables for running the state machine |
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QStm_StateMachineState m_currentState ; |
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bool m_isTimerEvent ; // We need to separate the pointer events and the timer events |
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QPoint m_currentTouchXY ; // This is the touching point |
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QPoint m_gestureStartXY ; // gesture started at this point |
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QPoint m_uiEventXY ; // The UI event XY point. |
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QPoint m_previousPointerEventPosition ; |
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QPoint m_deltaVector ; |
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QRect m_touchRect ; |
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QRect m_holdRect ; |
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bool m_wasFiltered ; |
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void calculateDelta() ; |
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void calculateTouchAverage() ; |
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void calculateCurrentVector() ; |
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QPoint calculateTouchAverageFromPoints() ; |
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bool insideArea(const QPoint& point, const QRect& rect, QStm_AreaShape shape, const QPoint& tolerance); |
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void setTolerance(long fingersize_mm, QPoint& tolerance, QStm_AreaShape shape) ; |
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void debugPrintState(QStm_StateMachineState nextstate) ; |
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inline static QRect toleranceRect( const QPoint& aCenterPoint, const QPoint& tolerance) ; |
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void turnStateMachine() ; |
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QPoint m_touchCentre ; |
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QPoint m_holdCentre ; |
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void* m_gestureTarget ; |
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long getInterval() ; |
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QTime m_lastMessageTime ; |
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QStm_UiEvent* createUIEvent(QStm_UiEventCode code, const QPoint& aPos) ; |
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QPoint getPreviousXY(const QPoint& aXY) ; |
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QPoint m_previousXY ; |
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bool isTimerMessage() ; |
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int m_index ; |
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// TPoint screenCoordinates(TPoint aPos, void* aGestureTarget) ; |
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QStm_UiEventCode m_previousUiGenerated ; |
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QPoint m_lastFilteredPosition ; |
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QTime m_lastFilteredMessageTime ; |
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QStm_StateEngineConfiguration* m_config ; |
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}; |
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class QStm_UiEventSender: public QObject |
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{ |
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public: |
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enum EventSenderState |
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{ |
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ENoEvents, |
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EEventsReady, |
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EBusy |
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}; |
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QStm_UiEventSender(); |
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~QStm_UiEventSender(); |
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int addEvent(QStm_UiEvent* gestureEvent); |
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bool addObserver(QStm_UiEventObserverIf* observer ); |
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bool removeObserver(QStm_UiEventObserverIf* observer ); |
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bool isObserver(void* observer ); |
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void setLogging(bool a) {m_loggingenabled = a;} ; |
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private: |
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void emitEvent( const QStm_UiEvent& gestureEvent ); |
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/*! |
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* Should we be prepared for more than 5 pointers ? Jos tulee Torvisen voittaja |
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*/ |
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QStm_UiEvent* m_events[qstmUiEventEngine::KMaxNumberOfPointers]; |
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void compressStack(QStm_UiEvent* uiEvent) ; |
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/* |
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* Let's be prepared for more than one observer, |
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* although usually there is only the gesture engine |
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*/ |
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QList<QStm_UiEventObserverIf*> m_observers; |
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bool m_loggingenabled ; |
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}; |
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} // namespace |
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#endif /* QSTMSTATEENGINE_H_ */ |