1 /** |
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2 * Copyright (c) 2010 Sasken Communication Technologies Ltd. |
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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 the "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 * Chandradeep Gandhi, Sasken Communication Technologies Ltd - Initial contribution |
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11 * |
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12 * Contributors: |
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13 * Manasij Roy, Nalina Hariharan |
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14 * |
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15 * Description: |
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16 * The music rating class represents an instance of rating |
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17 * about a music track |
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18 * |
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19 */ |
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20 |
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21 #ifndef SMFMUSICRATING_H_ |
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22 #define SMFMUSICRATING_H_ |
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23 |
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24 #include <QObject> |
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25 #include <QSharedData> |
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26 #include <smfclientglobal.h> |
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27 |
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28 class SmfTrackInfo; |
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29 class SmfMusicRatingPrivate; |
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30 |
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31 /** |
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32 * Indicates range of values to represent ratings, |
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33 * SP should normalize their rating value to this scale |
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34 */ |
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35 const int SMF_MAX_RATING = 10; |
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36 const int SMF_MIN_RATING = 0; |
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37 |
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38 /** |
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39 * @ingroup smf_common_group |
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40 * The music rating class represents an instance of rating |
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41 * about a music track |
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42 */ |
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43 class SMFCLIENT_EXPORT SmfMusicRating : public QObject |
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44 { |
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45 Q_OBJECT |
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46 public: |
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47 /** |
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48 * Constructor with default argument |
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49 * @param aParent The parent object |
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50 * (parent should be of type SmfTrackInfo) |
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51 */ |
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52 SmfMusicRating(SmfTrackInfo *aParent = 0); |
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53 |
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54 /** |
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55 * Copy Constructor |
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56 * @param aOther The reference object |
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57 */ |
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58 SmfMusicRating( const SmfMusicRating &aOther ); |
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59 |
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60 /** |
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61 * Overloaded = operator |
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62 * @param aOther The reference object |
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63 */ |
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64 SmfMusicRating operator=( const SmfMusicRating &aOther ); |
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65 |
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66 /** |
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67 * Destructor |
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68 */ |
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69 ~SmfMusicRating( ); |
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70 |
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71 /** |
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72 * Method to get the rating |
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73 * @return The rating value |
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74 */ |
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75 int rating( ) const; |
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76 |
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77 /** |
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78 * Method to get the max rating |
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79 * @return The max rating value |
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80 */ |
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81 int maxRating( ) const; |
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82 |
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83 /** |
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84 * Method to get the min rating |
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85 * @return The min rating value |
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86 */ |
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87 int minRating( ) const; |
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88 |
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89 private: |
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90 QSharedDataPointer<SmfMusicRatingPrivate> d; |
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91 |
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92 friend QDataStream &operator<<( QDataStream &aDataStream, |
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93 const SmfMusicRating &aMusicRating ); |
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94 |
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95 friend QDataStream &operator>>( QDataStream &aDataStream, |
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96 SmfMusicRating &aMusicRating ); |
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97 |
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98 }; |
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99 |
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100 |
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101 /** |
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102 * Method for Externalization. Writes the SmfMusicRating object to |
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103 * the stream and returns a reference to the stream. |
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104 * @param aDataStream Stream to be written |
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105 * @param aMusicRating The SmfMusicRating object to be externalized |
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106 * @return reference to the written stream |
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107 */ |
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108 QDataStream &operator<<( QDataStream &aDataStream, |
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109 const SmfMusicRating &aMusicRating ); |
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110 |
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111 /** |
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112 * Method for Internalization. Reads a SmfMusicRating object from |
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113 * the stream and returns a reference to the stream. |
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114 * @param aDataStream Stream to be read |
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115 * @param aMusicRating The SmfMusicRating object to be internalized |
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116 * @return reference to the stream |
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117 */ |
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118 QDataStream &operator>>( QDataStream &aDataStream, |
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119 SmfMusicRating &aMusicRating); |
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120 |
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121 #endif /* SMFMUSICRATING_H_ */ |
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