aeb8cfe2a2
This attribute doesn't quite do what it used to do in Qt 4.x anymore, and will lead to Qt not painting the video at all. Change-Id: I2338815756cab82ae152058ff5a7b5f14e07001e Reviewed-by: Samuel Rødal <samuel.rodal@nokia.com>
114 lines
3.4 KiB
C++
114 lines
3.4 KiB
C++
/****************************************************************************
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**
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** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
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** Contact: http://www.qt-project.org/
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**
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** This file is part of the examples of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:BSD$
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** You may use this file under the terms of the BSD license as follows:
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**
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** "Redistribution and use in source and binary forms, with or without
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** modification, are permitted provided that the following conditions are
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** met:
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** * Redistributions of source code must retain the above copyright
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** notice, this list of conditions and the following disclaimer.
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** * Redistributions in binary form must reproduce the above copyright
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** notice, this list of conditions and the following disclaimer in
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** the documentation and/or other materials provided with the
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** distribution.
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** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor
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** the names of its contributors may be used to endorse or promote
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** products derived from this software without specific prior written
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** permission.
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**
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** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#include "videowidget.h"
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#include "videowidgetsurface.h"
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#include <QtWidgets>
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#include <qvideosurfaceformat.h>
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//! [0]
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VideoWidget::VideoWidget(QWidget *parent)
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: QWidget(parent)
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, surface(0)
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{
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setAutoFillBackground(false);
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setAttribute(Qt::WA_NoSystemBackground, true);
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QPalette palette = this->palette();
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palette.setColor(QPalette::Background, Qt::black);
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setPalette(palette);
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setSizePolicy(QSizePolicy::MinimumExpanding, QSizePolicy::MinimumExpanding);
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surface = new VideoWidgetSurface(this);
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}
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//! [0]
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//! [1]
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VideoWidget::~VideoWidget()
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{
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delete surface;
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}
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//! [1]
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//! [2]
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QSize VideoWidget::sizeHint() const
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{
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return surface->surfaceFormat().sizeHint();
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}
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//! [2]
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//! [3]
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void VideoWidget::paintEvent(QPaintEvent *event)
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{
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QPainter painter(this);
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if (surface->isActive()) {
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const QRect videoRect = surface->videoRect();
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if (!videoRect.contains(event->rect())) {
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QRegion region = event->region();
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region = region.subtracted(videoRect);
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QBrush brush = palette().background();
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foreach (const QRect &rect, region.rects())
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painter.fillRect(rect, brush);
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}
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surface->paint(&painter);
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} else {
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painter.fillRect(event->rect(), palette().background());
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}
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}
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//! [3]
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//! [4]
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void VideoWidget::resizeEvent(QResizeEvent *event)
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{
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QWidget::resizeEvent(event);
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surface->updateVideoRect();
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}
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//! [4]
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