dcbbad869e
Change copyrights and license headers from Nokia to Digia Change-Id: Id77334cfb15de096941c88e32d04ca07b4eb4709 Reviewed-by: Janne Anttila <janne.anttila@digia.com> Reviewed-by: Sergio Ahumada <sergio.ahumada@digia.com> Reviewed-by: Lars Knoll <lars.knoll@digia.com>
138 lines
4.4 KiB
C++
138 lines
4.4 KiB
C++
/****************************************************************************
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**
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** Copyright (C) 2012 Digia Plc and/or its subsidiary(-ies).
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** Contact: http://www.qt-project.org/legal
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**
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** This file is part of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:LGPL$
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** Commercial License Usage
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** Licensees holding valid commercial Qt licenses may use this file in
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** accordance with the commercial license agreement provided with the
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** Software or, alternatively, in accordance with the terms contained in
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** a written agreement between you and Digia. For licensing terms and
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** conditions see http://qt.digia.com/licensing. For further information
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** use the contact form at http://qt.digia.com/contact-us.
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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, Digia gives you certain additional
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** rights. These rights are described in the Digia 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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** GNU General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU
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** General Public License version 3.0 as published by the Free Software
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** Foundation and appearing in the file LICENSE.GPL included in the
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** packaging of this file. Please review the following information to
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** ensure the GNU General Public License version 3.0 requirements will be
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** met: http://www.gnu.org/copyleft/gpl.html.
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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 <QtCore/qmetaobject.h>
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#include <QtCore/qtimer.h>
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#include "qmediacontrol.h"
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#include "qmediacontrol_p.h"
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QT_BEGIN_NAMESPACE
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/*!
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\class QMediaControl
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\inmodule QtMultimedia
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\ingroup multimedia
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\ingroup multimedia_control
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\ingroup multimedia_core
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\brief The QMediaControl class provides a base interface for media service controls.
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Media controls provide an interface to individual features provided by a
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media service. Most services implement a principal control which exposes
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the core functionality of the service and a number of optional controls which
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expose any additional functionality.
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A pointer to a control implemented by a media service can be obtained using
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the \l {QMediaService::requestControl()} member of QMediaService. If the
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service doesn't implement a control it will instead return a null pointer.
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\snippet doc/src/snippets/multimedia-snippets/media.cpp Request control
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Alternatively if the IId of the control has been declared using
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Q_MEDIA_DECLARE_CONTROL the template version of
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QMediaService::requestControl() can be used to request the service without
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explicitly passing the IId or using qobject_cast().
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\snippet doc/src/snippets/multimedia-snippets/media.cpp Request control templated
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Most application code will not interface directly with a media service's
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controls, instead the QMediaObject which owns the service acts as an
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intermediary between one or more controls and the application.
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\sa QMediaService, QMediaObject
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*/
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/*!
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\macro Q_MEDIA_DECLARE_CONTROL(Class, IId)
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\relates QMediaControl
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The Q_MEDIA_DECLARE_CONTROL macro declares an \a IId for a \a Class that
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inherits from QMediaControl.
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Declaring an IId for a QMediaControl allows an instance of that control to
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be requested from QMediaService::requestControl() without explicitly
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passing the IId.
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\snippet doc/src/snippets/multimedia-snippets/media.cpp Request control templated
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\sa QMediaService::requestControl()
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*/
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/*!
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Destroys a media control.
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*/
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QMediaControl::~QMediaControl()
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{
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delete d_ptr;
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}
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/*!
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Constructs a media control with the given \a parent.
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*/
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QMediaControl::QMediaControl(QObject *parent)
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: QObject(parent)
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, d_ptr(new QMediaControlPrivate)
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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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QMediaControl::QMediaControl(QMediaControlPrivate &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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#include "moc_qmediacontrol.cpp"
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QT_END_NAMESPACE
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