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    41 

    42 #ifndef QMEDIAPLAYLIST_P_H

    43 #define QMEDIAPLAYLIST_P_H

    44 

    45 //

    46 //  W A R N I N G

    47 //  -------------

    48 //

    49 // This file is not part of the Qt API. It exists purely as an

    50 // implementation detail. This header file may change from version to

    51 // version without notice, or even be removed.

    52 //

    53 // We mean it.

    54 //

    55 

    56 #include "qmediaplaylist.h"

    57 #include "qmediaplaylistcontrol.h"

    58 #include "qmediaplayer.h"

    59 #include "qmediaplayercontrol.h"

    60 #include "qlocalmediaplaylistprovider.h"

    61 #include "qmediaobject_p.h"

    62 

    63 #include <QtCore/qdebug.h>

    64 

    65 #ifdef Q_MOC_RUN

    66 # pragma Q_MOC_EXPAND_MACROS

    67 #endif

    68 

    69 QT_BEGIN_NAMESPACE

    70 

    71 class QMediaPlaylistControl;

    72 class QMediaPlaylistProvider;

    73 class QMediaPlaylistReader;

    74 class QMediaPlaylistWriter;

    75 class QMediaPlayerControl;

    76 

    77 class QMediaPlaylistPrivate

    78 {

    79     Q_DECLARE_PUBLIC(QMediaPlaylist)

    80 public:

    81     QMediaPlaylistPrivate()

    82         :mediaObject(0),

    83         control(0),

    84         localPlaylistControl(0),

    85         error(QMediaPlaylist::NoError)

    86     {

    87     }

    88 

    89     virtual ~QMediaPlaylistPrivate() {}

    90 

    91     void _q_loadFailed(QMediaPlaylist::Error error, const QString &errorString)

    92     {

    93         this->error = error;

    94         this->errorString = errorString;

    95 

    96         emit q_ptr->loadFailed();

    97     }

    98 

    99     void _q_mediaObjectDeleted()

   100     {

   101         Q_Q(QMediaPlaylist);

   102         mediaObject = 0;

   103         if (control != localPlaylistControl)

   104             control = 0;

   105         q->setMediaObject(0);

   106     }

   107 

   108     QMediaObject *mediaObject;

   109 

   110     QMediaPlaylistControl *control;

   111     QMediaPlaylistProvider *playlist() const { return control->playlistProvider(); }

   112 

   113     QMediaPlaylistControl *localPlaylistControl;

   114 

   115     bool readItems(QMediaPlaylistReader *reader);

   116     bool writeItems(QMediaPlaylistWriter *writer);

   117 

   118     QMediaPlaylist::Error error;

   119     QString errorString;

   120 

   121     QMediaPlaylist *q_ptr;

   122 };

   123 

   124 

   125 class QLocalMediaPlaylistControl : public QMediaPlaylistControl

   126 {

   127     Q_OBJECT

   128 public:

   129     QLocalMediaPlaylistControl(QObject *parent)

   130         :QMediaPlaylistControl(parent)

   131     {

   132         QMediaPlaylistProvider *playlist = new QLocalMediaPlaylistProvider(this);

   133         m_navigator = new QMediaPlaylistNavigator(playlist,this);

   134         m_navigator->setPlaybackMode(QMediaPlaylist::Sequential);

   135 

   136         connect(m_navigator, SIGNAL(currentIndexChanged(int)), SIGNAL(currentIndexChanged(int)));

   137         connect(m_navigator, SIGNAL(activated(QMediaContent)), SIGNAL(currentMediaChanged(QMediaContent)));

   138     }

   139 

   140     virtual ~QLocalMediaPlaylistControl() {};

   141 

   142     QMediaPlaylistProvider* playlistProvider() const { return m_navigator->playlist(); }

   143     bool setPlaylistProvider(QMediaPlaylistProvider *mediaPlaylist)

   144     {

   145         m_navigator->setPlaylist(mediaPlaylist);

   146         emit playlistProviderChanged();

   147         return true;

   148     }

   149 

   150     int currentIndex() const { return m_navigator->currentIndex(); }

   151     void setCurrentIndex(int position) { m_navigator->jump(position); }

   152     int nextIndex(int steps) const { return m_navigator->nextIndex(steps); }

   153     int previousIndex(int steps) const { return m_navigator->previousIndex(steps); }

   154 

   155     void next() { m_navigator->next(); }

   156     void previous() { m_navigator->previous(); }

   157 

   158     QMediaPlaylist::PlaybackMode playbackMode() const { return m_navigator->playbackMode(); }

   159     void setPlaybackMode(QMediaPlaylist::PlaybackMode mode) { m_navigator->setPlaybackMode(mode); }

   160 

   161 private:

   162     QMediaPlaylistNavigator *m_navigator;

   163 };

   164 

   165 

   166 QT_END_NAMESPACE

   167 

   168 #endif // QMEDIAPLAYLIST_P_H