a6268601c9
They aren't useful in the case of QtMultimedia{Kit}
Change-Id: If1b0b6625763c85907fb05beb9c440046472ddef
Reviewed-by: Jonas Rabbe <jonas.rabbe@nokia.com>
136 lines
4.1 KiB
C++
136 lines
4.1 KiB
C++
/****************************************************************************
|
|
**
|
|
** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
|
|
** All rights reserved.
|
|
** Contact: Nokia Corporation (qt-info@nokia.com)
|
|
**
|
|
** This file is part of the Qt Toolkit.
|
|
**
|
|
** $QT_BEGIN_LICENSE:LGPL$
|
|
** GNU Lesser General Public License Usage
|
|
** 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.
|
|
**
|
|
** GNU General Public License Usage
|
|
** Alternatively, this file may be used under the terms of the GNU General
|
|
** Public License version 3.0 as published by the Free Software Foundation
|
|
** and appearing in the file LICENSE.GPL included in the packaging of this
|
|
** file. Please review the following information to ensure the GNU General
|
|
** Public License version 3.0 requirements will be met:
|
|
** http://www.gnu.org/copyleft/gpl.html.
|
|
**
|
|
** Other Usage
|
|
** Alternatively, this file may be used in accordance with the terms and
|
|
** conditions contained in a signed written agreement between you and Nokia.
|
|
**
|
|
**
|
|
**
|
|
**
|
|
**
|
|
** $QT_END_LICENSE$
|
|
**
|
|
****************************************************************************/
|
|
|
|
#include <QtCore/qmetaobject.h>
|
|
#include <QtCore/qtimer.h>
|
|
|
|
#include "qmediacontrol.h"
|
|
#include "qmediacontrol_p.h"
|
|
|
|
|
|
|
|
QT_BEGIN_NAMESPACE
|
|
|
|
/*!
|
|
\class QMediaControl
|
|
\inmodule QtMultimedia
|
|
\ingroup multimedia-serv
|
|
|
|
|
|
\brief The QMediaControl class provides a base interface for media service controls.
|
|
|
|
Media controls provide an interface to individual features provided by a
|
|
media service. Most services implement a principal control which exposes
|
|
the core functionality of the service and a number of optional controls which
|
|
expose any additional functionality.
|
|
|
|
A pointer to a control implemented by a media service can be obtained using
|
|
the \l {QMediaService::requestControl()} member of QMediaService. If the
|
|
service doesn't implement a control it will instead return a null pointer.
|
|
|
|
\snippet doc/src/snippets/multimedia-snippets/media.cpp Request control
|
|
|
|
Alternatively if the IId of the control has been declared using
|
|
Q_MEDIA_DECLARE_CONTROL the template version of
|
|
QMediaService::requestControl() can be used to request the service without
|
|
explicitly passing the IId or using qobject_cast().
|
|
|
|
\snippet doc/src/snippets/multimedia-snippets/media.cpp Request control templated
|
|
|
|
Most application code will not interface directly with a media service's
|
|
controls, instead the QMediaObject which owns the service acts as an
|
|
intermediary between one or more controls and the application.
|
|
|
|
\sa QMediaService, QMediaObject
|
|
*/
|
|
|
|
/*!
|
|
\macro Q_MEDIA_DECLARE_CONTROL(Class, IId)
|
|
\relates QMediaControl
|
|
|
|
The Q_MEDIA_DECLARE_CONTROL macro declares an \a IId for a \a Class that
|
|
inherits from QMediaControl.
|
|
|
|
Declaring an IId for a QMediaControl allows an instance of that control to
|
|
be requested from QMediaService::requestControl() without explicitly
|
|
passing the IId.
|
|
|
|
\snippet doc/src/snippets/multimedia-snippets/media.cpp Request control templated
|
|
|
|
\sa QMediaService::requestControl()
|
|
*/
|
|
|
|
/*!
|
|
Destroys a media control.
|
|
*/
|
|
|
|
QMediaControl::~QMediaControl()
|
|
{
|
|
delete d_ptr;
|
|
}
|
|
|
|
/*!
|
|
Constructs a media control with the given \a parent.
|
|
*/
|
|
|
|
QMediaControl::QMediaControl(QObject *parent)
|
|
: QObject(parent)
|
|
, d_ptr(new QMediaControlPrivate)
|
|
{
|
|
d_ptr->q_ptr = this;
|
|
}
|
|
|
|
/*!
|
|
\internal
|
|
*/
|
|
|
|
QMediaControl::QMediaControl(QMediaControlPrivate &dd, QObject *parent)
|
|
: QObject(parent)
|
|
, d_ptr(&dd)
|
|
|
|
{
|
|
d_ptr->q_ptr = this;
|
|
}
|
|
|
|
#include "moc_qmediacontrol.cpp"
|
|
QT_END_NAMESPACE
|
|
|