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/*
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* Copyright (c) 2009 - 2010 Nokia Corporation and/or its subsidiary(-ies).
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* All rights reserved.
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* This component and the accompanying materials are made available
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* under the terms of "Eclipse Public License v1.0"
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* which accompanies this distribution, and is available
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* at the URL "http://www.eclipse.org/legal/epl-v10.html".
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*
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* Initial Contributors:
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* Nokia Corporation - initial contribution.
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*
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* Contributors:
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*
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* Description: Base class for all screensavers.
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*
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*/
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#ifndef SCREENSAVER_H
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#define SCREENSAVER_H
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#include <QGraphicsWidget>
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#include "screensavermodel_global.h"
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class ScreensaverPrivate;
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class HbIndicatorInterface;
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enum ScreensaverState
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{
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ScreensaverStateConstructed = 0,
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ScreensaverStateInitialized,
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ScreensaverStateBackground,
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ScreensaverStateForeground,
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ScreensaverStatePartialForeground,
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ScreensaverStatePowerSave,
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ScreensaverStateClosed
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};
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class SREENSAVERMODEL_EXPORT Screensaver : public QObject
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{
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Q_OBJECT
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public:
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Q_ENUMS(ScreenPowerMode)
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enum ScreenPowerMode {
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ScreenModeOff = 0,
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ScreenModeLowPower,
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ScreenModeFullPower
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};
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Screensaver(QObject *parent = 0);
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virtual ~Screensaver();
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ScreensaverState currentState();
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virtual void getActiveScreenRows(int *firstActiveRow, int *lastActiveRow) = 0;
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virtual void updateLayout() = 0;
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public slots:
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void initialize();
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void foreground();
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void partialForeground();
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void background();
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void powerSave();
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void close();
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void handleActiveIndicators(const QList<HbIndicatorInterface*> &activeIndicators);
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// TODO: change to const reference or something or leave it?
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void handleActivatedIndicator(HbIndicatorInterface *activatedIndicator);
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void handleDeactivatedIndicator(HbIndicatorInterface *deactivatedIndicator);
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protected:
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virtual bool onInitialize();
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virtual bool onForeground() = 0;
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virtual bool onPartialForeground() = 0;
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virtual bool onBackground() = 0;
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virtual bool onPowerSave() = 0;
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virtual bool onClose();
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virtual void onHandleActiveIndicators(const QList<HbIndicatorInterface*> &activeIndicators);
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// TODO: change to const reference or something or leave it?
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virtual void onHandleActivatedIndicator(HbIndicatorInterface *activatedIndicator);
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virtual void onHandleDeactivatedIndicator(HbIndicatorInterface *deactivatedIndicator);
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signals:
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void faulted();
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void viewChanged(QGraphicsWidget *widget);
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void unlockRequested();
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void screenPowerModeRequested(Screensaver::ScreenPowerMode mode);
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private:
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Q_DISABLE_COPY(Screensaver)
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private:
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ScreensaverPrivate * const m_d;
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friend class ScreensaverPrivate;
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};
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#endif // SCREENSAVER_H
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