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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.
**
** $QT_BEGIN_LICENSE:BSD$
** You may use this file under the terms of the BSD license as follows:
**
** "Redistribution and use in source and binary forms, with or without
** modification, are permitted provided that the following conditions are
** met:
** * Redistributions of source code must retain the above copyright
** notice, this list of conditions and the following disclaimer.
** * Redistributions in binary form must reproduce the above copyright
** notice, this list of conditions and the following disclaimer in
** the documentation and/or other materials provided with the
** distribution.
** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor
** the names of its contributors may be used to endorse or promote
** products derived from this software without specific prior written
** permission.
**
** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
** $QT_END_LICENSE$
**
****************************************************************************/
#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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