Doc: Copy snippets from the Qt Multimedia module

Extract a compilable subsection of...
- src/multimedia/doc/snippets/multimedia-snippets/camera.cpp
- src/multimedia/doc/snippets/multimedia-snippets/video.cpp

...into the snippet folder searched by:
- src/multimediawidgets/qcameraviewfinder.cpp
- src/multimediawidgets/qgraphicsvideoitem.cpp
- src/multimediawidgets/qvideowidget.cpp
- src/multimediawidgets/qvideowidgetcontrol.cpp

Change-Id: Ica3c21b65bc57d5686a594afca09e771cc376cc0
Reviewed-by: Jerome Pasion <jerome.pasion@digia.com>

2 files changed, 180 insertions, 0 deletions

diff --git a/src/multimediawidgets/doc/snippets/multimedia-snippets/camera.cpp b/src/multimediawidgets/doc/snippets/multimedia-snippets/camera.cpp
new file mode 100644
index 000000000..70c3cb6fb
--- /dev/null
+++ b/src/multimediawidgets/doc/snippets/multimedia-snippets/camera.cpp
@@ -0,0 +1,68 @@
+/****************************************************************************
+**
+** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
+** Contact: http://www.qt-project.org/legal
+**
+** This file is part of the documentation of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and Digia.  For licensing terms and
+** conditions see http://qt.digia.com/licensing.  For further information
+** use the contact form at http://qt.digia.com/contact-us.
+**
+** 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, Digia gives you certain additional
+** rights.  These rights are described in the Digia 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.
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+// Camera snippets
+// Extracted from src/multimedia/doc/snippets/multimedia-snippets/camera.cpp
+#include "qcamera.h"
+#include "qcameraviewfinder.h"
+#include "qcameraimagecapture.h"
+
+/* Globals so that everything is consistent. */
+QCamera *camera = 0;
+QCameraViewfinder *viewfinder = 0;
+QCameraImageCapture *imageCapture = 0;
+
+void camera_blah()
+{
+    //! [Camera]
+    camera = new QCamera;
+
+    viewfinder = new QCameraViewfinder();
+    viewfinder->show();
+
+    camera->setViewfinder(viewfinder);
+
+    imageCapture = new QCameraImageCapture(camera);
+
+    camera->setCaptureMode(QCamera::CaptureStillImage);
+    camera->start();
+    //! [Camera]
+}
diff --git a/src/multimediawidgets/doc/snippets/multimedia-snippets/video.cpp b/src/multimediawidgets/doc/snippets/multimedia-snippets/video.cpp
new file mode 100644
index 000000000..717419409
--- /dev/null
+++ b/src/multimediawidgets/doc/snippets/multimedia-snippets/video.cpp
@@ -0,0 +1,112 @@
+/****************************************************************************
+**
+** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
+** Contact: http://www.qt-project.org/legal
+**
+** This file is part of the documentation of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and Digia.  For licensing terms and
+** conditions see http://qt.digia.com/licensing.  For further information
+** use the contact form at http://qt.digia.com/contact-us.
+**
+** 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, Digia gives you certain additional
+** rights.  These rights are described in the Digia 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.
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+// Video related snippets
+// Extracted from src/multimedia/doc/snippets/multimedia-snippets/video.cpp
+#include "qmediaservice.h"
+#include "qmediaplayer.h"
+#include "qvideowidgetcontrol.h"
+#include "qvideowindowcontrol.h"
+#include "qgraphicsvideoitem.h"
+#include "qmediaplaylist.h"
+
+#include <QFormLayout>
+#include <QGraphicsView>
+
+class VideoExample : public QObject {
+    Q_OBJECT
+public:
+    void VideoGraphicsItem();
+    void VideoWidget();
+    void VideoWidgetControl();
+
+private:
+    // Common naming
+    QMediaService *mediaService;
+    QMediaPlaylist *playlist;
+    QVideoWidget *videoWidget;
+    QFormLayout *layout;
+    QMediaPlayer *player;
+    QGraphicsView *graphicsView;
+};
+
+void VideoExample::VideoWidget()
+{
+    //! [Video widget]
+    player = new QMediaPlayer;
+
+    playlist = new QMediaPlaylist(player);
+    playlist->addMedia(QUrl("http://example.com/myclip1.mp4"));
+    playlist->addMedia(QUrl("http://example.com/myclip2.mp4"));
+
+    videoWidget = new QVideoWidget;
+    player->setVideoOutput(videoWidget);
+
+    videoWidget->show();
+    playlist->setCurrentIndex(1);
+    player->play();
+    //! [Video widget]
+
+    player->stop();
+}
+
+void VideoExample::VideoWidgetControl()
+{
+    //! [Video widget control]
+    QVideoWidgetControl *widgetControl = mediaService->requestControl<QVideoWidgetControl *>();
+    layout->addWidget(widgetControl->videoWidget());
+    //! [Video widget control]
+}
+
+void VideoExample::VideoGraphicsItem()
+{
+    //! [Video graphics item]
+    player = new QMediaPlayer(this);
+
+    QGraphicsVideoItem *item = new QGraphicsVideoItem;
+    player->setVideoOutput(item);
+    graphicsView->scene()->addItem(item);
+    graphicsView->show();
+
+    player->setMedia(QUrl("http://example.com/myclip4.ogv"));
+    player->play();
+    //! [Video graphics item]
+}