1 | /*********************************************************************
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2 | // created: 2007/04/12 - 16:30
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3 |
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4 | //
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5 | // author: Elie Al Alam & Gerald Dherbomez
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6 | //
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7 | // version: $Id: $
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8 | //
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9 | // purpose: Dbite Player Engine state chart header file
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10 | *********************************************************************/
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11 |
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12 | #ifndef DBTPLYENGINESTATECHART_H
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13 | #define DBTPLYENGINESTATECHART_H
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14 |
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15 | #include <qstring.h>
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16 |
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17 | #include "DbitePlayerConfig.h"
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18 |
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19 | namespace pacpus {
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20 |
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21 | class DbtPlyEngine;
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22 |
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23 | ////////////////////////////////////////////////////////////////////////////////
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24 | class DBITE_PLAYER_API DbtPlyEngineState
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25 | {
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26 | public:
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27 | virtual ~DbtPlyEngineState();
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28 |
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29 | virtual void play(DbtPlyEngine & engine);
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30 | virtual void pause(DbtPlyEngine & engine);
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31 | virtual void stop(DbtPlyEngine & engine);
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32 |
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33 | virtual void speedUp(DbtPlyEngine & engine);
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34 | virtual void speedDown(DbtPlyEngine & engine);
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35 |
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36 | virtual bool isPlaying();
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37 |
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38 | virtual QString toString() const = 0;
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39 |
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40 | protected:
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41 | DbtPlyEngineState();
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42 | };
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43 |
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44 | ////////////////////////////////////////////////////////////////////////////////
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45 | class DBITE_PLAYER_API PlayingState
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46 | : public DbtPlyEngineState
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47 | {
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48 | public:
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49 | virtual void pause(DbtPlyEngine & engine);
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50 | virtual void stop(DbtPlyEngine & engine);
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51 |
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52 | virtual bool isPlaying();
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53 |
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54 | virtual QString toString() const;
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55 | static DbtPlyEngineState * getInstance();
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56 |
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57 | private:
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58 | PlayingState();
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59 | static PlayingState mInstance;
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60 | };
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61 |
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62 | ////////////////////////////////////////////////////////////////////////////////
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63 | class DBITE_PLAYER_API PausedState
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64 | : public DbtPlyEngineState
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65 | {
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66 | public:
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67 | virtual void play(DbtPlyEngine & engine);
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68 | virtual void stop(DbtPlyEngine & engine);
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69 |
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70 | virtual QString toString() const;
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71 | static DbtPlyEngineState * getInstance();
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72 |
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73 | private:
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74 | PausedState();
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75 | static PausedState mInstance;
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76 | };
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77 |
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78 | ////////////////////////////////////////////////////////////////////////////////
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79 | class DBITE_PLAYER_API StoppedState
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80 | : public DbtPlyEngineState
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81 | {
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82 | public:
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83 | virtual void play(DbtPlyEngine & engine);
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84 |
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85 | virtual QString toString() const;
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86 | static DbtPlyEngineState * getInstance();
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87 |
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88 | private:
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89 | StoppedState();
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90 | static StoppedState mInstance;
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91 | };
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92 |
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93 | } // namespace pacpus
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94 |
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95 | #endif // DBTPLYENGINESTATECHART_H
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