diff options
author | Justin McPherson <justin.mcpherson@nokia.com> | 2010-04-15 09:08:00 (GMT) |
---|---|---|
committer | Jason McDonald <jason.mcdonald@nokia.com> | 2010-04-16 03:32:49 (GMT) |
commit | 441a2dea20b5d4aa2a4d477cf01e0959ac87fe13 (patch) | |
tree | 4a593284c88995b9c54218da6072aaa702af459e /src/multimedia/mediaservices/base/qmediacontrol.cpp | |
parent | 2f89bb3c6ec37178ab7bed0e172b61d017e33d75 (diff) | |
download | Qt-441a2dea20b5d4aa2a4d477cf01e0959ac87fe13.zip Qt-441a2dea20b5d4aa2a4d477cf01e0959ac87fe13.tar.gz Qt-441a2dea20b5d4aa2a4d477cf01e0959ac87fe13.tar.bz2 |
Create Mediaservices lib, separate from Multimedia.
(cherry picked from commit e85223d233c0e1d6beca748332b8fbaba3ebbf2d)
Diffstat (limited to 'src/multimedia/mediaservices/base/qmediacontrol.cpp')
-rw-r--r-- | src/multimedia/mediaservices/base/qmediacontrol.cpp | 140 |
1 files changed, 140 insertions, 0 deletions
diff --git a/src/multimedia/mediaservices/base/qmediacontrol.cpp b/src/multimedia/mediaservices/base/qmediacontrol.cpp new file mode 100644 index 0000000..98db9fe --- /dev/null +++ b/src/multimedia/mediaservices/base/qmediacontrol.cpp @@ -0,0 +1,140 @@ +/**************************************************************************** +** +** 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 QtMediaservices 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 <QtCore/qmetaobject.h> +#include <QtCore/qtimer.h> + +#include <QtMediaservices//qmediacontrol.h> +#include <QtMediaservices/private/qmediacontrol_p.h> + + + +QT_BEGIN_NAMESPACE + +/*! + \class QMediaControl + \ingroup multimedia-serv + \since 4.7 + + \preliminary + \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 optional controls which expose any additional functionality. + + A pointer to a control implemented by a media service can be obtained using the + \l {QMediaService::control()}{control()} member of QMediaService. If the service doesn't + implement a control it will instead return a null pointer. + + \code + QMediaPlayerControl *control = qobject_cast<QMediaPlayerControl *>( + service->control("com.nokia.Qt.QMediaPlayerControl/1.0")); + \endcode + + Alternatively if the IId of the control has been declared using Q_MEDIA_DECLARE_CONTROL + the template version of QMediaService::control() can be used to request the service without + explicitly passing the IId. + + \code + QMediaPlayerControl *control = service->control<QMediaPlayerControl *>(); + \endcode + + Most application code will not interface directly with a media service's controls, instead the + QMediaObject which owns the service acts as an intermeditary 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::control() without explicitly passing the IId. + + \code + QMediaPlayerControl *control = service->control<QMediaPlayerControl *>(); + \endcode + + \sa QMediaService::control() +*/ + +/*! + 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 + |