1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
|
/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the QtMultimedia module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** No Commercial Usage
** This file contains pre-release code and may not be distributed.
** You may use this file in accordance with the terms and conditions
** contained in the Technology Preview License Agreement accompanying
** this package.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain additional
** rights. These rights are described in the Nokia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** If you have questions regarding the use of this file, please contact
** Nokia at qt-info@nokia.com.
**
**
**
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include <QtMultimedia/qmediaplaylistcontrol.h>
#include "qmediacontrol_p.h"
QT_BEGIN_NAMESPACE
/*!
\class QMediaPlaylistControl
\ingroup multimedia-serv
\preliminary
\brief The QMediaPlaylistControl class provides access to the playlist functionality of a
QMediaService.
If a QMediaService contains an internal playlist it will implement QMediaPlaylistControl. This
control provides access to the contents of the \l {playlistProvider()}{playlist}, as well as the
\l {currentIndex()}{position} of the current media, and a means of navigating to the
\l {next()}{next} and \l {previous()}{previous} media.
The functionality provided by the control is exposed to application code through the
QMediaPlaylist class.
The interface name of QMediaPlaylistControl is \c com.nokia.Qt.QMediaPlaylistControl/1.0 as
defined in QMediaPlaylistControl_iid.
\sa QMediaService::control(), QMediaPlayer
*/
/*!
\macro QMediaPlaylistControl_iid
\c com.nokia.Qt.QMediaPlaylistControl/1.0
Defines the interface name of the QMediaPlaylistControl class.
\relates QMediaPlaylistControl
*/
/*!
Create a new playlist control object with the given \a parent.
*/
QMediaPlaylistControl::QMediaPlaylistControl(QObject *parent):
QMediaControl(*new QMediaControlPrivate, parent)
{
}
/*!
Destroys the playlist control.
*/
QMediaPlaylistControl::~QMediaPlaylistControl()
{
}
/*!
\fn QMediaPlaylistControl::playlistProvider() const
Returns the playlist used by this media player.
*/
/*!
\fn QMediaPlaylistControl::setPlaylistProvider(QMediaPlaylistProvider *playlist)
Set the playlist of this media player to \a playlist.
In many cases it is possible just to use the playlist
constructed by player, but sometimes replacing the whole
playlist allows to avoid copyting of all the items bettween playlists.
Returns true if player can use this passed playlist; otherwise returns false.
*/
/*!
\fn QMediaPlaylistControl::currentIndex() const
Returns position of the current media source in the playlist.
*/
/*!
\fn QMediaPlaylistControl::setCurrentIndex(int position)
Jump to the item at the given \a position.
*/
/*!
\fn QMediaPlaylistControl::nextIndex(int step) const
Returns the index of item, which were current after calling next()
\a step times.
Returned value depends on the size of playlist, current position
and playback mode.
\sa QMediaPlaylist::playbackMode
*/
/*!
\fn QMediaPlaylistControl::previousIndex(int step) const
Returns the index of item, which were current after calling previous()
\a step times.
\sa QMediaPlaylist::playbackMode
*/
/*!
\fn QMediaPlaylistControl::next()
Moves to the next item in playlist.
*/
/*!
\fn QMediaPlaylistControl::previous()
Returns to the previous item in playlist.
*/
/*!
\fn QMediaPlaylistControl::playbackMode() const
Returns the playlist navigation mode.
\sa QMediaPlaylist::PlaybackMode
*/
/*!
\fn QMediaPlaylistControl::setPlaybackMode(QMediaPlaylist::PlaybackMode mode)
Sets the playback \a mode.
\sa QMediaPlaylist::PlaybackMode
*/
/*!
\fn QMediaPlaylistControl::playlistProviderChanged()
Signal emited when the playlist provider has changed.
*/
/*!
\fn QMediaPlaylistControl::currentIndexChanged(int position)
Signal emited when the playlist \a position is changed.
*/
/*!
\fn QMediaPlaylistControl::playbackModeChanged(QMediaPlaylist::PlaybackMode mode)
Signal emited when the playback \a mode is changed.
*/
/*!
\fn QMediaPlaylistControl::currentMediaChanged(const QMediaContent& content)
Signal emitted when current media changes to \a content.
*/
#include "moc_qmediaplaylistcontrol.cpp"
QT_END_NAMESPACE
|
