399500f87e
Change-Id: Ia8c1c38aba1544603fada8c414cc856f365fd15b Reviewed-by: Akseli Salovaara <akseli.salovaara@digia.com> Reviewed-by: Sergio Ahumada <sergio.ahumada@digia.com>
310 lines
8.1 KiB
C++
310 lines
8.1 KiB
C++
/****************************************************************************
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**
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** Copyright (C) 2013 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 "qmediaplaylistprovider_p.h"
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#include <QtCore/qurl.h>
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QT_BEGIN_NAMESPACE
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/*!
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\class QMediaPlaylistProvider
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\internal
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\brief The QMediaPlaylistProvider class provides an abstract list of media.
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\inmodule QtMultimedia
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\ingroup multimedia
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\ingroup multimedia_playback
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\sa QMediaPlaylist
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*/
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/*!
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Constructs a playlist provider with the given \a parent.
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*/
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QMediaPlaylistProvider::QMediaPlaylistProvider(QObject *parent)
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:QObject(parent), d_ptr(new QMediaPlaylistProviderPrivate)
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{
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}
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/*!
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\internal
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*/
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QMediaPlaylistProvider::QMediaPlaylistProvider(QMediaPlaylistProviderPrivate &dd, QObject *parent)
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:QObject(parent), d_ptr(&dd)
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{
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}
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/*!
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Destroys a playlist provider.
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*/
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QMediaPlaylistProvider::~QMediaPlaylistProvider()
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{
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delete d_ptr;
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}
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/*!
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\fn QMediaPlaylistProvider::mediaCount() const;
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Returns the size of playlist.
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*/
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/*!
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\fn QMediaPlaylistProvider::media(int index) const;
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Returns the media at \a index in the playlist.
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If the index is invalid this will return a null media content.
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*/
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/*!
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Loads a playlist using network \a request. If no playlist \a format is specified the loader
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will inspect the URL or probe the headers to guess the format.
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New items are appended to playlist.
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Returns true if the provider supports the format and loading from the locations URL protocol,
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otherwise this will return false.
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*/
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bool QMediaPlaylistProvider::load(const QNetworkRequest &request, const char *format)
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{
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Q_UNUSED(request);
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Q_UNUSED(format);
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return false;
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}
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/*!
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Loads a playlist from from an I/O \a device. If no playlist \a format is specified the loader
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will probe the headers to guess the format.
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New items are appended to playlist.
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Returns true if the provider supports the format and loading from an I/O device, otherwise this
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will return false.
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*/
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bool QMediaPlaylistProvider::load(QIODevice * device, const char *format)
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{
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Q_UNUSED(device);
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Q_UNUSED(format);
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return false;
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}
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/*!
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Saves the contents of a playlist to a URL \a location. If no playlist \a format is specified
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the writer will inspect the URL to guess the format.
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Returns true if the playlist was saved successfully; and false otherwise.
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*/
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bool QMediaPlaylistProvider::save(const QUrl &location, const char *format)
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{
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Q_UNUSED(location);
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Q_UNUSED(format);
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return false;
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}
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/*!
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Saves the contents of a playlist to an I/O \a device in the specified \a format.
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Returns true if the playlist was saved successfully; and false otherwise.
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*/
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bool QMediaPlaylistProvider::save(QIODevice * device, const char *format)
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{
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Q_UNUSED(device);
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Q_UNUSED(format);
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return false;
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}
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/*!
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Returns true if a playlist is read-only; otherwise returns false.
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*/
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bool QMediaPlaylistProvider::isReadOnly() const
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{
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return true;
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}
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/*!
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Append \a media to a playlist.
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Returns true if the media was appended; and false otherwise.
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*/
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bool QMediaPlaylistProvider::addMedia(const QMediaContent &media)
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{
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Q_UNUSED(media);
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return false;
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}
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/*!
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Append multiple media \a items to a playlist.
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Returns true if the media items were appended; and false otherwise.
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*/
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bool QMediaPlaylistProvider::addMedia(const QList<QMediaContent> &items)
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{
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foreach(const QMediaContent &item, items) {
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if (!addMedia(item))
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return false;
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}
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return true;
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}
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/*!
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Inserts \a media into a playlist at \a position.
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Returns true if the media was inserted; and false otherwise.
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*/
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bool QMediaPlaylistProvider::insertMedia(int position, const QMediaContent &media)
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{
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Q_UNUSED(position);
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Q_UNUSED(media);
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return false;
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}
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/*!
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Inserts multiple media \a items into a playlist at \a position.
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Returns true if the media \a items were inserted; and false otherwise.
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*/
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bool QMediaPlaylistProvider::insertMedia(int position, const QList<QMediaContent> &items)
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{
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for (int i=0; i<items.count(); i++) {
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if (!insertMedia(position+i,items.at(i)))
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return false;
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}
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return true;
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}
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/*!
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Removes the media at \a position from a playlist.
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Returns true if the media was removed; and false otherwise.
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*/
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bool QMediaPlaylistProvider::removeMedia(int position)
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{
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Q_UNUSED(position);
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return false;
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}
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/*!
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Removes the media between the given \a start and \a end positions from a playlist.
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Returns true if the media was removed; and false otherwise.
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*/
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bool QMediaPlaylistProvider::removeMedia(int start, int end)
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{
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for (int pos=start; pos<=end; pos++) {
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if (!removeMedia(pos))
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return false;
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}
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return true;
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}
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/*!
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Removes all media from a playlist.
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Returns true if the media was removed; and false otherwise.
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*/
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bool QMediaPlaylistProvider::clear()
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{
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return removeMedia(0, mediaCount()-1);
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}
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/*!
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Shuffles the contents of a playlist.
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*/
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void QMediaPlaylistProvider::shuffle()
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{
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}
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/*!
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\fn void QMediaPlaylistProvider::mediaAboutToBeInserted(int start, int end);
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Signals that new media is about to be inserted into a playlist between the \a start and \a end
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positions.
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*/
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/*!
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\fn void QMediaPlaylistProvider::mediaInserted(int start, int end);
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Signals that new media has been inserted into a playlist between the \a start and \a end
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positions.
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*/
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/*!
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\fn void QMediaPlaylistProvider::mediaAboutToBeRemoved(int start, int end);
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Signals that media is about to be removed from a playlist between the \a start and \a end
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positions.
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*/
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/*!
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\fn void QMediaPlaylistProvider::mediaRemoved(int start, int end);
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Signals that media has been removed from a playlist between the \a start and \a end positions.
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*/
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/*!
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\fn void QMediaPlaylistProvider::mediaChanged(int start, int end);
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Signals that media in playlist between the \a start and \a end positions inclusive has changed.
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*/
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/*!
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\fn void QMediaPlaylistProvider::loaded()
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Signals that a load() finished successfully.
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*/
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/*!
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\fn void QMediaPlaylistProvider::loadFailed(QMediaPlaylist::Error error, const QString& errorMessage)
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Signals that a load failed() due to an \a error. The \a errorMessage provides more information.
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*/
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#include "moc_qmediaplaylistprovider_p.cpp"
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QT_END_NAMESPACE
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