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Diffstat (limited to 'src/multimediakit/qlocalmediaplaylistprovider.cpp')
-rw-r--r-- | src/multimediakit/qlocalmediaplaylistprovider.cpp | 194 |
1 files changed, 194 insertions, 0 deletions
diff --git a/src/multimediakit/qlocalmediaplaylistprovider.cpp b/src/multimediakit/qlocalmediaplaylistprovider.cpp new file mode 100644 index 000000000..1bbb2ff64 --- /dev/null +++ b/src/multimediakit/qlocalmediaplaylistprovider.cpp @@ -0,0 +1,194 @@ +/**************************************************************************** +** +** Copyright (C) 2010 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. +** +** $QT_BEGIN_LICENSE:LGPL$ +** GNU Lesser General Public License Usage +** 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. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU General +** Public License version 3.0 as published by the Free Software Foundation +** and appearing in the file LICENSE.GPL included in the packaging of this +** file. Please review the following information to ensure the GNU General +** Public License version 3.0 requirements will be met: +** http://www.gnu.org/copyleft/gpl.html. +** +** Other Usage +** Alternatively, this file may be used in accordance with the terms and +** conditions contained in a signed written agreement between you and Nokia. +** +** +** +** +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include "qlocalmediaplaylistprovider.h" +#include "qmediaplaylistprovider_p.h" +#include "qmediacontent.h" + +QT_BEGIN_NAMESPACE + +class QLocalMediaPlaylistProviderPrivate: public QMediaPlaylistProviderPrivate +{ +public: + QList<QMediaContent> resources; +}; + +QLocalMediaPlaylistProvider::QLocalMediaPlaylistProvider(QObject *parent) + :QMediaPlaylistProvider(*new QLocalMediaPlaylistProviderPrivate, parent) +{ +} + +QLocalMediaPlaylistProvider::~QLocalMediaPlaylistProvider() +{ +} + +bool QLocalMediaPlaylistProvider::isReadOnly() const +{ + return false; +} + +int QLocalMediaPlaylistProvider::mediaCount() const +{ + return d_func()->resources.size(); +} + +QMediaContent QLocalMediaPlaylistProvider::media(int pos) const +{ + return d_func()->resources.value(pos); +} + +bool QLocalMediaPlaylistProvider::addMedia(const QMediaContent &content) +{ + Q_D(QLocalMediaPlaylistProvider); + + int pos = d->resources.count(); + + emit mediaAboutToBeInserted(pos, pos); + d->resources.append(content); + emit mediaInserted(pos, pos); + + return true; +} + +bool QLocalMediaPlaylistProvider::addMedia(const QList<QMediaContent> &items) +{ + Q_D(QLocalMediaPlaylistProvider); + + if (items.isEmpty()) + return true; + + int pos = d->resources.count(); + int end = pos+items.count()-1; + + emit mediaAboutToBeInserted(pos, end); + d->resources.append(items); + emit mediaInserted(pos, end); + + return true; +} + + +bool QLocalMediaPlaylistProvider::insertMedia(int pos, const QMediaContent &content) +{ + Q_D(QLocalMediaPlaylistProvider); + + emit mediaAboutToBeInserted(pos, pos); + d->resources.insert(pos, content); + emit mediaInserted(pos,pos); + + return true; +} + +bool QLocalMediaPlaylistProvider::insertMedia(int pos, const QList<QMediaContent> &items) +{ + Q_D(QLocalMediaPlaylistProvider); + + if (items.isEmpty()) + return true; + + const int last = pos+items.count()-1; + + emit mediaAboutToBeInserted(pos, last); + for (int i=0; i<items.count(); i++) + d->resources.insert(pos+i, items.at(i)); + emit mediaInserted(pos, last); + + return true; +} + +bool QLocalMediaPlaylistProvider::removeMedia(int fromPos, int toPos) +{ + Q_D(QLocalMediaPlaylistProvider); + + Q_ASSERT(fromPos >= 0); + Q_ASSERT(fromPos <= toPos); + Q_ASSERT(toPos < mediaCount()); + + emit mediaAboutToBeRemoved(fromPos, toPos); + d->resources.erase(d->resources.begin()+fromPos, d->resources.begin()+toPos+1); + emit mediaRemoved(fromPos, toPos); + + return true; +} + +bool QLocalMediaPlaylistProvider::removeMedia(int pos) +{ + Q_D(QLocalMediaPlaylistProvider); + + emit mediaAboutToBeRemoved(pos, pos); + d->resources.removeAt(pos); + emit mediaRemoved(pos, pos); + + return true; +} + +bool QLocalMediaPlaylistProvider::clear() +{ + Q_D(QLocalMediaPlaylistProvider); + if (!d->resources.isEmpty()) { + int lastPos = mediaCount()-1; + emit mediaAboutToBeRemoved(0, lastPos); + d->resources.clear(); + emit mediaRemoved(0, lastPos); + } + + return true; +} + +void QLocalMediaPlaylistProvider::shuffle() +{ + Q_D(QLocalMediaPlaylistProvider); + if (!d->resources.isEmpty()) { + QList<QMediaContent> resources; + + while (!d->resources.isEmpty()) { + resources.append(d->resources.takeAt(qrand() % d->resources.size())); + } + + d->resources = resources; + emit mediaChanged(0, mediaCount()-1); + } + +} + +#include "moc_qlocalmediaplaylistprovider.cpp" +QT_END_NAMESPACE + |