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<h1 class="title">datasource.h Example File</h1>
<span class="subtitle">openglseries/datasource.h</span>
<!-- $$$openglseries/datasource.h-description -->
<div class="descr"> <a name="details"></a>
<pre class="cpp">
<span class="comment">/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the Qt Charts module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:GPL$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3 or (at your option) any later version
** approved by the KDE Free Qt Foundation. The licenses are as published by
** the Free Software Foundation and appearing in the file LICENSE.GPL3
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-3.0.html.
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****************************************************************************/</span>
<span class="preprocessor">#ifndef DATASOURCE_H</span>
<span class="preprocessor">#define DATASOURCE_H</span>
<span class="preprocessor">#include <QtCore/QObject></span>
<span class="preprocessor">#include <QtCharts/QXYSeries></span>
<span class="preprocessor">#include <QtWidgets/QLabel></span>
<span class="preprocessor">#include <QtCore/QElapsedTimer></span>
<span class="preprocessor">#include <QtCore/QTimer></span>
QT_CHARTS_USE_NAMESPACE
<span class="keyword">class</span> DataSource : <span class="keyword">public</span> <span class="type">QObject</span>
{
Q_OBJECT
<span class="keyword">public</span>:
<span class="keyword">explicit</span> DataSource(<span class="type">QObject</span> <span class="operator">*</span>parent <span class="operator">=</span> <span class="number">0</span>);
<span class="type">void</span> startUpdates(<span class="keyword">const</span> <span class="type">QList</span><span class="operator"><</span><span class="type"><a href="qxyseries.html">QXYSeries</a></span> <span class="operator">*</span><span class="operator">></span> <span class="operator">&</span>seriesList<span class="operator">,</span> <span class="type">QLabel</span> <span class="operator">*</span>fpsLabel);
<span class="keyword">public</span> <span class="keyword">slots</span>:
<span class="type">void</span> generateData(<span class="type">int</span> seriesCount<span class="operator">,</span> <span class="type">int</span> rowCount<span class="operator">,</span> <span class="type">int</span> colCount);
<span class="type">void</span> update(<span class="type"><a href="qabstractseries.html">QAbstractSeries</a></span> <span class="operator">*</span>series<span class="operator">,</span> <span class="type">int</span> seriesIndex);
<span class="type">void</span> handleSceneChanged();
<span class="type">void</span> updateAllSeries();
<span class="keyword">private</span>:
<span class="type">QVector</span><span class="operator"><</span><span class="type">QVector</span><span class="operator"><</span><span class="type">QVector</span><span class="operator"><</span><span class="type">QPointF</span><span class="operator">></span> <span class="operator">></span> <span class="operator">></span> m_data;
<span class="type">int</span> m_index;
<span class="type">QList</span><span class="operator"><</span><span class="type"><a href="qxyseries.html">QXYSeries</a></span> <span class="operator">*</span><span class="operator">></span> m_seriesList;
<span class="type">QLabel</span> <span class="operator">*</span>m_fpsLabel;
<span class="type">QElapsedTimer</span> m_fpsTimer;
<span class="type">QTimer</span> m_dataUpdater;
};
<span class="preprocessor">#endif // DATASOURCE_H</span>
</pre>
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<!-- @@@openglseries/datasource.h -->
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