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1 /* |
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2 * Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies). |
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3 * All rights reserved. |
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4 * This component and the accompanying materials are made available |
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5 * under the terms of "Eclipse Public License v1.0" |
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6 * which accompanies this distribution, and is available |
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7 * at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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8 * |
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9 * Initial Contributors: |
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10 * Nokia Corporation - initial contribution. |
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11 * |
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12 * Contributors: |
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13 * |
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14 * Description: Base class for all screensavers. |
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15 * |
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16 */ |
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17 |
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18 #ifndef SCREENSAVER_H |
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19 #define SCREENSAVER_H |
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20 |
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21 #include <QGraphicsWidget> |
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22 |
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23 #include "screensavermodel_global.h" |
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24 |
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25 class ScreensaverPrivate; |
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26 |
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27 enum ScreensaverState |
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28 { |
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29 ScreensaverStateConstructed = 0, |
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30 ScreensaverStateInitialized, |
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31 ScreensaverStateBackground, |
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32 ScreensaverStateForeground, |
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33 ScreensaverStatePartialForeground, |
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34 ScreensaverStatePowerSave, |
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35 ScreensaverStateClosed |
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36 }; |
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37 |
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38 class SREENSAVERMODEL_EXPORT Screensaver : public QObject |
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39 { |
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40 Q_OBJECT |
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41 |
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42 public: |
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43 |
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44 Screensaver(QObject *parent = 0); |
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45 virtual ~Screensaver(); |
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46 |
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47 ScreensaverState currentState(); |
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48 |
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49 public slots: |
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50 |
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51 void initialize(); |
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52 void foreground(); |
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53 void partialForeground(); |
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54 void background(); |
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55 void powerSave(); |
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56 void close(); |
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57 |
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58 protected: |
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59 |
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60 virtual bool onInitialize(); |
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61 virtual bool onForeground() = 0; |
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62 virtual bool onPartialForeground() = 0; |
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63 virtual bool onBackground() = 0; |
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64 virtual bool onPowerSave() = 0; |
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65 virtual bool onClose(); |
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66 |
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67 signals: |
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68 |
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69 void faulted(); |
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70 void viewChanged(QGraphicsWidget *widget); |
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71 |
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72 private: |
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73 |
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74 Q_DISABLE_COPY(Screensaver) |
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75 |
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76 private: |
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77 |
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78 ScreensaverPrivate * const m_d; |
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79 friend class ScreensaverPrivate; |
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80 |
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81 }; |
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82 |
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83 #endif // SCREENSAVER_H |