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/****************************************************************************
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**
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** Copyright (C) 2012 Digia Plc
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** All rights reserved.
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** For any questions to Digia, please use contact form at http://qt.digia.com
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**
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** This file is part of the Qt Commercial Charts Add-on.
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**
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** $QT_BEGIN_LICENSE$
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** Licensees holding valid Qt Commercial licenses may use this file in
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** accordance with the Qt Commercial License Agreement provided with the
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** Software or, alternatively, in accordance with the terms contained in
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** a written agreement between you and Digia.
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**
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** If you have questions regarding the use of this file, please use
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** contact form at http://qt.digia.com
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#include "datasource.h"
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#include <QXYSeries>
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#include <QDebug>
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QTCOMMERCIALCHART_USE_NAMESPACE
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DataSource::DataSource(QObject *parent) :
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QObject(parent),
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m_index(0)
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{
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const int rowCount = 5;
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const int colCount = 1024;
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for (int i(0); i < rowCount; i++) {
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QList<QPointF> points;
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for (int j(0); j < colCount; j++) {
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qreal x = j;
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qreal y = sin(3.14159265358979 / 50 * x) + 0.5 + (qreal) rand() / (qreal) RAND_MAX;
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points.append(QPointF(x, y));
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}
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m_data.append(points);
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}
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}
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void DataSource::update(QAbstractSeries *series)
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{
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QXYSeries *xySeries = qobject_cast<QXYSeries *>(series);
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Q_ASSERT(xySeries);
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QList<QPointF> points = m_data.at(m_index);
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//xySeries->clear();
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//xySeries->append(points);
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xySeries->replace(points);
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m_index = (m_index + 1) % m_data.count();
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}
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