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Diffstat (limited to 'src/multimedia/mediaservices/base/qmediacontent.cpp')
| -rw-r--r-- | src/multimedia/mediaservices/base/qmediacontent.cpp | 242 |
1 files changed, 242 insertions, 0 deletions
diff --git a/src/multimedia/mediaservices/base/qmediacontent.cpp b/src/multimedia/mediaservices/base/qmediacontent.cpp new file mode 100644 index 0000000..50d8e46 --- /dev/null +++ b/src/multimedia/mediaservices/base/qmediacontent.cpp @@ -0,0 +1,242 @@ +/**************************************************************************** +** +** 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/qurl.h> +#include <QtCore/qvariant.h> + +#include <QtMediaServices/qmediacontent.h> + + +QT_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. + \since 4.7 + + \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 request providing a reference to the content. + + This constructor can be used to reference media content via network protocols such as HTTP. + This may include additional information required to obtain the resource, such as Cookies or HTTP headers. +*/ + +QMediaContent::QMediaContent(const QNetworkRequest &request): + d(new QMediaContentPrivate) +{ + d->resources << QMediaResource(request); +} + +/*! + 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 QNetworkRequest that represents that canonical resource for this media content. +*/ + +QNetworkRequest QMediaContent::canonicalRequest() const +{ + return canonicalResource().request(); +} + +/*! + 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(); +} + +QT_END_NAMESPACE + |