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/****************************************************************************
**
** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** 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 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 "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->isActive()) {
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]
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