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Diffstat (limited to 'src/multimedia/mediaservices/base/qmediaobject.cpp')
| -rw-r--r-- | src/multimedia/mediaservices/base/qmediaobject.cpp | 419 |
1 files changed, 0 insertions, 419 deletions
diff --git a/src/multimedia/mediaservices/base/qmediaobject.cpp b/src/multimedia/mediaservices/base/qmediaobject.cpp deleted file mode 100644 index 68fb29e..0000000 --- a/src/multimedia/mediaservices/base/qmediaobject.cpp +++ /dev/null @@ -1,419 +0,0 @@ -/**************************************************************************** -** -** 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 QtMediaservics 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/qmetaobject.h> - -#include "qmediaobject_p.h" - -#include <QtMediaServices/qmediaservice.h> -#include <QtMediaServices/qmetadatacontrol.h> - - -QT_BEGIN_NAMESPACE - -void QMediaObjectPrivate::_q_notify() -{ - Q_Q(QMediaObject); - - const QMetaObject* m = q->metaObject(); - - foreach (int pi, notifyProperties) { - QMetaProperty p = m->property(pi); - p.notifySignal().invoke( - q, QGenericArgument(QMetaType::typeName(p.userType()), p.read(q).data())); - } -} - - -/*! - \class QMediaObject - \preliminary - \brief The QMediaObject class provides a common base for multimedia objects. - \since 4.7 - - \ingroup multimedia - - QMediaObject derived classes provide access to the functionality of a - QMediaService. Each media object hosts a QMediaService and uses the - QMediaControl interfaces implemented by the service to implement its - API. Most media objects when constructed will request a new - QMediaService instance from a QMediaServiceProvider, but some like - QMediaRecorder will share a service with another object. - - QMediaObject itself provides an API for accessing a media service's \l {metaData()}{meta-data} and a means of connecting other media objects, - and peripheral classes like QVideoWidget and QMediaPlaylist. - - \sa QMediaService, QMediaControl -*/ - -/*! - Destroys a media object. -*/ - -QMediaObject::~QMediaObject() -{ - delete d_ptr; -} - -/*! - Returns the service availability error state. -*/ - -QtMediaServices::AvailabilityError QMediaObject::availabilityError() const -{ - return QtMediaServices::ServiceMissingError; -} - -/*! - Returns true if the service is available for use. -*/ - -bool QMediaObject::isAvailable() const -{ - return false; -} - -/*! - Returns the media service that provides the functionality of a multimedia object. -*/ - -QMediaService* QMediaObject::service() const -{ - return d_func()->service; -} - -int QMediaObject::notifyInterval() const -{ - return d_func()->notifyTimer->interval(); -} - -void QMediaObject::setNotifyInterval(int milliSeconds) -{ - Q_D(QMediaObject); - - if (d->notifyTimer->interval() != milliSeconds) { - d->notifyTimer->setInterval(milliSeconds); - - emit notifyIntervalChanged(milliSeconds); - } -} - -/*! - \internal -*/ -void QMediaObject::bind(QObject*) -{ -} - -/*! - \internal -*/ -void QMediaObject::unbind(QObject*) -{ -} - - -/*! - Constructs a media object which uses the functionality provided by a media \a service. - - The \a parent is passed to QObject. - - This class is meant as a base class for Multimedia objects so this - constructor is protected. -*/ - -QMediaObject::QMediaObject(QObject *parent, QMediaService *service): - QObject(parent), - d_ptr(new QMediaObjectPrivate) - -{ - Q_D(QMediaObject); - - d->q_ptr = this; - - d->notifyTimer = new QTimer(this); - d->notifyTimer->setInterval(1000); - connect(d->notifyTimer, SIGNAL(timeout()), SLOT(_q_notify())); - - d->service = service; - - setupMetaData(); -} - -/*! - \internal -*/ - -QMediaObject::QMediaObject(QMediaObjectPrivate &dd, QObject *parent, - QMediaService *service): - QObject(parent), - d_ptr(&dd) -{ - Q_D(QMediaObject); - d->q_ptr = this; - - d->notifyTimer = new QTimer(this); - d->notifyTimer->setInterval(1000); - connect(d->notifyTimer, SIGNAL(timeout()), SLOT(_q_notify())); - - d->service = service; - - setupMetaData(); -} - -/*! - Watch the property \a name. The property's notify signal will be emitted - once every notifyInterval milliseconds. - - \sa notifyInterval -*/ - -void QMediaObject::addPropertyWatch(QByteArray const &name) -{ - Q_D(QMediaObject); - - const QMetaObject* m = metaObject(); - - int index = m->indexOfProperty(name.constData()); - - if (index != -1 && m->property(index).hasNotifySignal()) { - d->notifyProperties.insert(index); - - if (!d->notifyTimer->isActive()) - d->notifyTimer->start(); - } -} - -/*! - Remove property \a name from the list of properties whose changes are - regularly signaled. - - \sa notifyInterval -*/ - -void QMediaObject::removePropertyWatch(QByteArray const &name) -{ - Q_D(QMediaObject); - - int index = metaObject()->indexOfProperty(name.constData()); - - if (index != -1) { - d->notifyProperties.remove(index); - - if (d->notifyProperties.isEmpty()) - d->notifyTimer->stop(); - } -} - -/*! - \property QMediaObject::notifyInterval - - The interval at which notifiable properties will update. - - The interval is expressed in milliseconds, the default value is 1000. - - \sa addPropertyWatch(), removePropertyWatch() -*/ - -/*! - \fn void QMediaObject::notifyIntervalChanged(int milliseconds) - - Signal a change in the notify interval period to \a milliseconds. -*/ - -/*! - \property QMediaObject::metaDataAvailable - \brief whether access to a media object's meta-data is available. - - If this is true there is meta-data available, otherwise there is no meta-data available. -*/ - -bool QMediaObject::isMetaDataAvailable() const -{ - Q_D(const QMediaObject); - - return d->metaDataControl - ? d->metaDataControl->isMetaDataAvailable() - : false; -} - -/*! - \fn QMediaObject::metaDataAvailableChanged(bool available) - - Signals that the \a available state of a media object's meta-data has changed. -*/ - -/*! - \property QMediaObject::metaDataWritable - \brief whether a media object's meta-data is writable. - - If this is true the meta-data is writable, otherwise the meta-data is read-only. -*/ - -bool QMediaObject::isMetaDataWritable() const -{ - Q_D(const QMediaObject); - - return d->metaDataControl - ? d->metaDataControl->isWritable() - : false; -} - -/*! - \fn QMediaObject::metaDataWritableChanged(bool writable) - - Signals that the \a writable state of a media object's meta-data has changed. -*/ - -/*! - Returns the value associated with a meta-data \a key. -*/ -QVariant QMediaObject::metaData(QtMediaServices::MetaData key) const -{ - Q_D(const QMediaObject); - - return d->metaDataControl - ? d->metaDataControl->metaData(key) - : QVariant(); -} - -/*! - Sets a \a value for a meta-data \a key. -*/ -void QMediaObject::setMetaData(QtMediaServices::MetaData key, const QVariant &value) -{ - Q_D(QMediaObject); - - if (d->metaDataControl) - d->metaDataControl->setMetaData(key, value); -} - -/*! - Returns a list of keys there is meta-data available for. -*/ -QList<QtMediaServices::MetaData> QMediaObject::availableMetaData() const -{ - Q_D(const QMediaObject); - - return d->metaDataControl - ? d->metaDataControl->availableMetaData() - : QList<QtMediaServices::MetaData>(); -} - -/*! - \fn QMediaObject::metaDataChanged() - - Signals that a media object's meta-data has changed. -*/ - -/*! - Returns the value associated with a meta-data \a key. - - The naming and type of extended meta-data is not standardized, so the values and meaning - of keys may vary between backends. -*/ -QVariant QMediaObject::extendedMetaData(const QString &key) const -{ - Q_D(const QMediaObject); - - return d->metaDataControl - ? d->metaDataControl->extendedMetaData(key) - : QVariant(); -} - -/*! - Sets a \a value for a meta-data \a key. - - The naming and type of extended meta-data is not standardized, so the values and meaning - of keys may vary between backends. -*/ -void QMediaObject::setExtendedMetaData(const QString &key, const QVariant &value) -{ - Q_D(QMediaObject); - - if (d->metaDataControl) - d->metaDataControl->setExtendedMetaData(key, value); -} - -/*! - Returns a list of keys there is extended meta-data available for. -*/ -QStringList QMediaObject::availableExtendedMetaData() const -{ - Q_D(const QMediaObject); - - return d->metaDataControl - ? d->metaDataControl->availableExtendedMetaData() - : QStringList(); -} - - -void QMediaObject::setupMetaData() -{ - Q_D(QMediaObject); - - if (d->service != 0) { - d->metaDataControl = - qobject_cast<QMetaDataControl*>(d->service->control(QMetaDataControl_iid)); - - if (d->metaDataControl) { - connect(d->metaDataControl, SIGNAL(metaDataChanged()), SIGNAL(metaDataChanged())); - connect(d->metaDataControl, - SIGNAL(metaDataAvailableChanged(bool)), - SIGNAL(metaDataAvailableChanged(bool))); - connect(d->metaDataControl, - SIGNAL(writableChanged(bool)), - SIGNAL(metaDataWritableChanged(bool))); - } - } -} - -/*! - \fn QMediaObject::availabilityChanged(bool available) - - Signal emitted when the availability state has changed to \a available -*/ - - -#include "moc_qmediaobject.cpp" - -QT_END_NAMESPACE - |