summaryrefslogtreecommitdiffstats
path: root/examples/video/videowidget/videowidget.cpp
diff options
context:
space:
mode:
Diffstat (limited to 'examples/video/videowidget/videowidget.cpp')
-rw-r--r--examples/video/videowidget/videowidget.cpp114
1 files changed, 114 insertions, 0 deletions
diff --git a/examples/video/videowidget/videowidget.cpp b/examples/video/videowidget/videowidget.cpp
new file mode 100644
index 0000000..b29d2ae
--- /dev/null
+++ b/examples/video/videowidget/videowidget.cpp
@@ -0,0 +1,114 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the examples 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 either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** 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 1.0, 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.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at http://qt.nokia.com/contact.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "videowidget.h"
+
+#include "videowidgetsurface.h"
+
+#include <QtMultimedia>
+
+//! [0]
+VideoWidget::VideoWidget(QWidget *parent)
+ : QWidget(parent)
+ , surface(0)
+{
+ setAutoFillBackground(false);
+ setAttribute(Qt::WA_NoSystemBackground, true);
+ setAttribute(Qt::WA_PaintOnScreen, true);
+
+ QPalette palette = this->palette();
+ palette.setColor(QPalette::Background, Qt::black);
+ setPalette(palette);
+
+ setSizePolicy(QSizePolicy::MinimumExpanding, QSizePolicy::MinimumExpanding);
+
+ surface = new VideoWidgetSurface(this);
+}
+//! [0]
+
+//! [1]
+VideoWidget::~VideoWidget()
+{
+ delete surface;
+}
+//! [1]
+
+//! [2]
+QSize VideoWidget::sizeHint() const
+{
+ return surface->surfaceFormat().sizeHint();
+}
+//! [2]
+
+
+//! [3]
+void VideoWidget::paintEvent(QPaintEvent *event)
+{
+ QPainter painter(this);
+
+ if (surface->isStarted()) {
+ const QRect videoRect = surface->videoRect();
+
+ if (!videoRect.contains(event->rect())) {
+ QRegion region = event->region();
+ region.subtract(videoRect);
+
+ QBrush brush = palette().background();
+
+ foreach (const QRect &rect, region.rects())
+ painter.fillRect(rect, brush);
+ }
+
+ surface->paint(&painter);
+ } else {
+ painter.fillRect(event->rect(), palette().background());
+ }
+}
+//! [3]
+
+//! [4]
+void VideoWidget::resizeEvent(QResizeEvent *event)
+{
+ QWidget::resizeEvent(event);
+
+ surface->updateVideoRect();
+}
+//! [4]