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/****************************************************************************
**
** Copyright (C) 2015 The Qt Company Ltd.
** Contact: http://www.qt.io/licensing/
**
** This file is part of the examples of the Qt Sense Hat module
**
** $QT_BEGIN_LICENSE:BSD$
** 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 The Qt Company Ltd 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 <QCoreApplication>
#include <QLoggingCategory>
#include <QSenseHatFb>
#include <QPainter>
#include <unistd.h>
int main(int argc, char **argv)
{
QLoggingCategory::setFilterRules(QStringLiteral("qt.sensehat=true"));
QCoreApplication app(argc, argv);
QSenseHatFb fb;
qDebug("Framebuffer valid = %d", fb.isValid());
if (!fb.isValid())
return 1;
fb.setLowLight(true);
QPainter p(fb.paintDevice());
int x = 7, dx = -1;
Qt::GlobalColor col = Qt::white;
for (int i = 0; i < 200; ++i) {
p.fillRect(QRect(QPoint(), fb.size()), Qt::black);
p.setPen(col);
p.drawEllipse(QPoint(x, 4), 3, 3);
p.drawLine(QPoint(x, 4), QPoint(x + 3, 7));
x += dx;
if (x < -4 || x > 10)
dx *= -1;
usleep(1000 * 100);
if (!(i % 8)) {
col = Qt::GlobalColor(col + 1);
if (col == Qt::transparent)
col = Qt::white;
}
}
p.fillRect(QRect(QPoint(), fb.size()), Qt::black);
return 0;
}
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