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Update useOpenGL docs...
Update useOpenGL docs Change-Id: Ife1771c68320151fea9f314843e2e23563764009 Reviewed-by: Titta Heikkala <titta.heikkala@theqtcompany.com>
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r2776:bc1f6aa59d42
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wavechart.cpp
67 lines | 1.8 KiB | text/x-c | CppLexer
/ tests / manual / wavechart / wavechart.cpp
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Michal Klocek
minor. add missing license files
 r875 /****************************************************************************
**
Titta Heikkala
Copyright header changes...
 r2776 ** Copyright (C) 2015 The Qt Company Ltd
Michal Klocek
minor. add missing license files
 r875 ** All rights reserved.
Titta Heikkala
Copyright header changes...
 r2776 ** For any questions to The Qt Company, please use contact form at http://qt.io
Michal Klocek
minor. add missing license files
 r875 **
Titta Heikkala
Updated license headers...
 r2740 ** This file is part of the Qt Charts module.
Michal Klocek
minor. add missing license files
 r875 **
Titta Heikkala
Updated license headers...
 r2740 ** Licensees holding valid commercial license for Qt may use this file in
** accordance with the Qt License Agreement provided with the Software
** or, alternatively, in accordance with the terms contained in a written
Titta Heikkala
Copyright header changes...
 r2776 ** agreement between you and The Qt Company.
Michal Klocek
minor. add missing license files
 r875 **
** If you have questions regarding the use of this file, please use
Titta Heikkala
Updated license headers...
 r2740 ** contact form at http://qt.io
Michal Klocek
minor. add missing license files
 r875 **
****************************************************************************/
Michal Klocek
Adds test/wavechart
 r867 #include "wavechart.h"
#include <cmath>
Titta Heikkala
Qt Charts project file structure change...
 r2712 QT_CHARTS_USE_NAMESPACE
Michal Klocek
Adds test/wavechart
 r867
#define PI 3.14159265358979
static const int numPoints =100;
WaveChart::WaveChart(QChart* chart, QWidget* parent) :
QChartView(chart, parent),
m_series(new QLineSeries()),
m_wave(0),
m_step(2 * PI / numPoints)
{
QPen blue(Qt::blue);
blue.setWidth(3);
m_series->setPen(blue);
Marek Rosa
removed legend from wavechart and added axes to it
 r1622 chart->legend()->setVisible(false);
Michal Klocek
Adds test/wavechart
 r867 QTime now = QTime::currentTime();
qsrand((uint) now.msec());
int fluctuate = 100;
for (qreal x = 0; x <= 2 * PI; x += m_step) {
m_series->append(x, fabs(sin(x) * fluctuate));
}
chart->addSeries(m_series);
Marek Rosa
removed legend from wavechart and added axes to it
 r1622 chart->createDefaultAxes();
Michal Klocek
Adds test/wavechart
 r867
QObject::connect(&m_timer, SIGNAL(timeout()), this, SLOT(update()));
m_timer.setInterval(5000);
m_timer.start();
}
void WaveChart::update()
{
int fluctuate;
Michal Klocek
Fixes and improvments to series API...
 r1057 const QList<QPointF>& points = m_series->points();
Michal Klocek
Adds test/wavechart
 r867 for (qreal i = 0, x = 0; x <= 2 * PI; x += m_step, i++) {
fluctuate = qrand() % 100;
Michal Klocek
Fixes and improvments to series API...
 r1057 m_series->replace(x,points[i].y(),x,fabs(sin(x) * fluctuate));
Michal Klocek
Adds test/wavechart
 r867
}
}