diff options
Diffstat (limited to 'src/imports/multimedia/qdeclarativecamerapreviewprovider.cpp')
-rw-r--r-- | src/imports/multimedia/qdeclarativecamerapreviewprovider.cpp | 97 |
1 files changed, 97 insertions, 0 deletions
diff --git a/src/imports/multimedia/qdeclarativecamerapreviewprovider.cpp b/src/imports/multimedia/qdeclarativecamerapreviewprovider.cpp new file mode 100644 index 000000000..293120eda --- /dev/null +++ b/src/imports/multimedia/qdeclarativecamerapreviewprovider.cpp @@ -0,0 +1,97 @@ +/**************************************************************************** +** +** 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 plugins 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 "qdeclarativecamerapreviewprovider_p.h" +#include <QtCore/qmutex.h> +#include <QtCore/qdebug.h> + +QT_BEGIN_NAMESPACE + +struct QDeclarativeCameraPreviewProviderPrivate +{ + QString id; + QImage image; + QMutex mutex; +}; + +Q_GLOBAL_STATIC(QDeclarativeCameraPreviewProviderPrivate, qDeclarativeCameraPreviewProviderPrivate) + +QDeclarativeCameraPreviewProvider::QDeclarativeCameraPreviewProvider() +: QDeclarativeImageProvider(QDeclarativeImageProvider::Image) +{ +} + +QDeclarativeCameraPreviewProvider::~QDeclarativeCameraPreviewProvider() +{ + QDeclarativeCameraPreviewProviderPrivate *d = qDeclarativeCameraPreviewProviderPrivate(); + QMutexLocker lock(&d->mutex); + d->id.clear(); + d->image = QImage(); +} + +QImage QDeclarativeCameraPreviewProvider::requestImage(const QString &id, QSize *size, const QSize& requestedSize) +{ + QDeclarativeCameraPreviewProviderPrivate *d = qDeclarativeCameraPreviewProviderPrivate(); + QMutexLocker lock(&d->mutex); + + if (d->id != id) + return QImage(); + + QImage res = d->image; + if (!requestedSize.isEmpty()) + res = res.scaled(requestedSize, Qt::KeepAspectRatio, Qt::SmoothTransformation); + + if (size) + *size = res.size(); + + return res; +} + +void QDeclarativeCameraPreviewProvider::registerPreview(const QString &id, const QImage &preview) +{ + //only the last preview is kept + QDeclarativeCameraPreviewProviderPrivate *d = qDeclarativeCameraPreviewProviderPrivate(); + QMutexLocker lock(&d->mutex); + d->id = id; + d->image = preview; +} + +QT_END_NAMESPACE |