/****************************************************************************

**

** 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 Qt Mobility Components.

**

** $QT_BEGIN_LICENSE:LGPL$

** 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/qurl.h>

#include <QtCore/qvariant.h>

#include <qmediacontent.h>

QTM_BEGIN_NAMESPACE

class QMediaContentPrivate : public QSharedData

{

public:

    QMediaContentPrivate() {}

    QMediaContentPrivate(const QMediaResourceList &r):

        resources(r) {}

    QMediaContentPrivate(const QMediaContentPrivate &other):

        QSharedData(other),

        resources(other.resources)

    {}

    bool operator ==(const QMediaContentPrivate &other) const

    {

        return resources == other.resources;

    }

    QMediaResourceList  resources;

private:

    QMediaContentPrivate& operator=(const QMediaContentPrivate &other);

};

/*!

    \class QMediaContent

    \preliminary

    \brief The QMediaContent class provides access to the resources relating to a media content.

    \ingroup multimedia

    QMediaContent is used within the multimedia framework as the logical handle

    to media content.  A QMediaContent object is composed of one or more

    \l {QMediaResource}s where each resource provides the URL and format

    information of a different encoding of the content.

    A non-null QMediaContent will always have a primary or canonical reference to

    the content available through the canonicalUrl() or canonicalResource()

    methods, any additional resources are optional.

*/

/*!

    Constructs a null QMediaContent.

*/

QMediaContent::QMediaContent()

{

}

/*!

    Constructs a media content with \a url providing a reference to the content.

*/

QMediaContent::QMediaContent(const QUrl &url):

    d(new QMediaContentPrivate)

{

    d->resources << QMediaResource(url);

}

/*!

    Constructs a media content with \a resource providing a reference to the content.

*/

QMediaContent::QMediaContent(const QMediaResource &resource):

    d(new QMediaContentPrivate)

{

    d->resources << resource;

}

/*!

    Constructs a media content with \a resources providing a reference to the content.

*/

QMediaContent::QMediaContent(const QMediaResourceList &resources):

    d(new QMediaContentPrivate(resources))

{

}

/*!

    Constructs a copy of the media content \a other.

*/

QMediaContent::QMediaContent(const QMediaContent &other):

    d(other.d)

{

}

/*!

    Destroys the media content object.

*/

QMediaContent::~QMediaContent()

{

}

/*!

    Assigns the value of \a other to this media content.

*/

QMediaContent& QMediaContent::operator=(const QMediaContent &other)

{

    d = other.d;

    return *this;

}

/*!

    Returns true if \a other is equivalent to this media content; false otherwise.

*/

bool QMediaContent::operator==(const QMediaContent &other) const

{

    return (d.constData() == 0 && other.d.constData() == 0) ||

            (d.constData() != 0 && other.d.constData() != 0 &&

             *d.constData() == *other.d.constData());

}

/*!

    Returns true if \a other is not equivalent to this media content; false otherwise.

*/

bool QMediaContent::operator!=(const QMediaContent &other) const

{

    return !(*this == other);

}

/*!

    Returns true if this media content is null (uninitialized); false otherwise.

*/

bool QMediaContent::isNull() const

{

    return d.constData() == 0;

}

/*!

    Returns a QUrl that represents that canonical resource for this media content.

*/

QUrl QMediaContent::canonicalUrl() const

{

    return canonicalResource().url();

}

/*!

    Returns a QMediaResource that represents that canonical resource for this media content.

*/

QMediaResource QMediaContent::canonicalResource() const

{

    return d.constData() != 0

            ?  d->resources.value(0)

            : QMediaResource();

}

/*!

    Returns a list of alternative resources for this media content.  The first item in this list

    is always the canonical resource.

*/

QMediaResourceList QMediaContent::resources() const

{

    return d.constData() != 0

            ? d->resources

            : QMediaResourceList();

}

QTM_END_NAMESPACE