summaryrefslogtreecommitdiffstats
path: root/src/multimedia/controls/qmetadatawritercontrol.cpp
blob: 6221edaa1a578b1d6a18349f7793fec9f27ee87e (plain)
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
/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 3 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL3 included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 3 requirements
** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 2.0 or (at your option) the GNU General
** Public license version 3 or any later version approved by the KDE Free
** Qt Foundation. The licenses are as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-2.0.html and
** https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/

#include "qmediacontrol_p.h"
#include <qmetadatawritercontrol.h>

QT_BEGIN_NAMESPACE


/*!
    \class QMetaDataWriterControl
    \obsolete
    \inmodule QtMultimedia


    \ingroup multimedia_control


    \brief The QMetaDataWriterControl class provides write access to the
    meta-data of a QMediaService's media.

    If a QMediaService can provide write access to the meta-data of its
    current media it will implement QMetaDataWriterControl.  This control
    provides functions for both retrieving and setting meta-data values.
    Meta-data may be addressed by the keys defined in the
    QMediaMetaData namespace.

    The functionality provided by this control is exposed to application code
    by the meta-data members of QMediaObject, and so meta-data access is
    potentially available in any of the media object classes.  Any media
    service may implement QMetaDataControl.

    The interface name of QMetaDataWriterControl is \c org.qt-project.qt.metadatawritercontrol/5.0 as
    defined in QMetaDataWriterControl_iid.

    \sa QMediaService::requestControl(), QMediaObject
*/

/*!
    \macro QMetaDataWriterControl_iid

    \c org.qt-project.qt.metadatawritercontrol/5.0

    Defines the interface name of the QMetaDataWriterControl class.

    \relates QMetaDataWriterControl
*/

/*!
    Construct a QMetaDataWriterControl with \a parent. This class is meant as a base class
    for service specific meta data providers so this constructor is protected.
*/

QMetaDataWriterControl::QMetaDataWriterControl(QObject *parent):
    QMediaControl(*new QMediaControlPrivate, parent)
{
}

/*!
    Destroy the meta-data writer control.
*/

QMetaDataWriterControl::~QMetaDataWriterControl()
{
}

/*!
    \fn bool QMetaDataWriterControl::isMetaDataAvailable() const

    Identifies if meta-data is available from a media service.

    Returns true if the meta-data is available and false otherwise.
*/

/*!
    \fn bool QMetaDataWriterControl::isWritable() const

    Identifies if a media service's meta-data can be edited.

    Returns true if the meta-data is writable and false otherwise.
*/

/*!
    \fn QVariant QMetaDataWriterControl::metaData(const QString &key) const

    Returns the meta-data for the given \a key.
*/

/*!
    \fn void QMetaDataWriterControl::setMetaData(const QString &key, const QVariant &value)

    Sets the \a value of the meta-data element with the given \a key.
*/

/*!
    \fn QMetaDataWriterControl::availableMetaData() const

    Returns a list of keys there is meta-data available for.
*/

/*!
    \fn void QMetaDataWriterControl::metaDataChanged()

    Signal the changes of meta-data.

    If multiple meta-data elements are changed,
    metaDataChanged(const QString &key, const QVariant &value) signal is emitted
    for each of them with metaDataChanged() changed emitted once.
*/

/*!
    \fn void QMetaDataWriterControl::metaDataChanged(const QString &key, const QVariant &value)

    Signal the changes of one meta-data element \a value with the given \a key.
*/

/*!
    \fn void QMetaDataWriterControl::metaDataAvailableChanged(bool available)

    Signal the availability of meta-data has changed, \a available will
    be true if the multimedia object has meta-data.
*/

/*!
    \fn void QMetaDataWriterControl::writableChanged(bool writable)

    Signal a change in the writable status of meta-data, \a writable will be
    true if meta-data elements can be added or adjusted.
*/

QT_END_NAMESPACE

#include "moc_qmetadatawritercontrol.cpp"