author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
Fri, 11 Jun 2010 14:26:25 +0300 | |
changeset 11 | 06b8e2af4411 |
parent 5 | 453da2cfceef |
child 14 | 6fbed849b4f4 |
permissions | -rw-r--r-- |
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/**************************************************************************** |
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** |
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** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies). |
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** All rights reserved. |
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** Contact: Nokia Corporation (qt-info@nokia.com) |
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** |
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** This file is part of the Qt Mobility Components. |
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** |
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** $QT_BEGIN_LICENSE:LGPL$ |
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** No Commercial Usage |
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** This file contains pre-release code and may not be distributed. |
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** You may use this file in accordance with the terms and conditions |
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** contained in the Technology Preview License Agreement accompanying |
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** this package. |
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** |
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** GNU Lesser General Public License Usage |
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** Alternatively, this file may be used under the terms of the GNU Lesser |
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** General Public License version 2.1 as published by the Free Software |
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** Foundation and appearing in the file LICENSE.LGPL included in the |
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** packaging of this file. Please review the following information to |
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** ensure the GNU Lesser General Public License version 2.1 requirements |
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** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. |
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** |
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** In addition, as a special exception, Nokia gives you certain additional |
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** rights. These rights are described in the Nokia Qt LGPL Exception |
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. |
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** |
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** If you have questions regarding the use of this file, please contact |
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** Nokia at qt-info@nokia.com. |
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** |
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** |
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** |
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** |
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** |
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** |
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** |
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** |
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** $QT_END_LICENSE$ |
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** |
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****************************************************************************/ |
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#include "qmediaservice.h" |
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#include "qmediaservice_p.h" |
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#include <QtCore/qtimer.h> |
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QT_BEGIN_NAMESPACE |
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/*! |
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\class QMediaService |
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\brief The QMediaService class provides a common base class for media |
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service implementations. |
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\ingroup multimedia-serv |
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\preliminary |
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Media services provide implementations of the functionality promised |
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by media objects, and allow multiple providers to implement a QMediaObject. |
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To provide the functionality of a QMediaObject media services implement |
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QMediaControl interfaces. Services typically implement one core media |
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control which provides the core feature of a media object, and some |
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number of additional controls which provide either optional features of |
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the media object, or features of a secondary media object or peripheral |
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object. |
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A pointer to media service's QMediaControl implementation can be |
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obtained by passing the control's interface name to the control() function. |
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\code |
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QMediaPlayerControl *control = qobject_cast<QMediaPlayerControl *>( |
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service->control("com.nokia.Qt.QMediaPlayerControl/1.0")); |
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\endcode |
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Media objects can use services loaded dynamically from plug-ins or |
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implemented statically within an applications. Plug-in based services |
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should also implement the QMediaServiceProviderPlugin interface. Static |
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services should implement the QMediaServiceProvider interface. |
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\sa QMediaObject, QMediaControl, QMediaServiceProvider, QMediaServiceProviderPlugin |
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*/ |
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/*! |
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Construct a media service with the given \a parent. This class is meant as a |
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base class for Multimedia services so this constructor is protected. |
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*/ |
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QMediaService::QMediaService(QObject *parent) |
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: QObject(parent) |
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, d_ptr(new QMediaServicePrivate) |
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{ |
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d_ptr->q_ptr = this; |
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} |
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/*! |
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\internal |
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*/ |
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QMediaService::QMediaService(QMediaServicePrivate &dd, QObject *parent) |
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: QObject(parent) |
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, d_ptr(&dd) |
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{ |
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d_ptr->q_ptr = this; |
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} |
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|
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/*! |
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Destroys a media service. |
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*/ |
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|
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QMediaService::~QMediaService() |
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{ |
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delete d_ptr; |
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} |
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/*! |
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\fn QMediaService::control(const char *interface) const |
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|
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Returns a pointer to the media control implementing \a interface. |
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|
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If the service does not implement the control a null pointer is returned instead. |
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*/ |
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/*! |
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\fn QMediaService::control() const |
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|
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Returns a pointer to the media control of type T implemented by a media service. |
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|
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If the service does not implment the control a null pointer is returned instead. |
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*/ |
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#include "moc_qmediaservice.cpp" |
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5
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QT_END_NAMESPACE |
1
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