Initial copy of QtMultimediaKit.

Comes from original repo, with SHA1: 2c82d5611655e5967f5c5095af50c0991c4378b2
2011-06-29 13:38:46 +10:00
commit 2a34e88c1e
1048 changed files with 206259 additions and 0 deletions
--- a/src/imports/multimedia/qdeclarativecamerapreviewprovider.cpp
+++ 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