/**************************************************************************** ** ** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies). ** Contact: http://www.qt-project.org/ ** ** 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 #include #include "qmediacontrol.h" #include "qmediacontrol_p.h" QT_BEGIN_NAMESPACE /*! \class QMediaControl \inmodule QtMultimedia \ingroup multimedia \ingroup multimedia_control \ingroup multimedia_core \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