/****************************************************************************
**
** 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.
**
** $QT_END_LICENSE$
**
****************************************************************************/

#ifndef CHARTWIDGET_H
#define CHARTWIDGET_H

#include <QtWidgets/QHBoxLayout>
#include <QtCharts/QChart>
#include <QtCharts/QChartView>
#include <QtCharts/QValueAxis>
#include <QtCharts/QBarSeries>
#include <QtCharts/QBarSet>
#include <QtCore/QTimer>
#include <QtCore/QElapsedTimer>

QT_USE_NAMESPACE


class ChartWidget : public QWidget
{
    Q_OBJECT

public:
    explicit ChartWidget(QWidget *parent = 0);
    ~ChartWidget();

public slots:
    void handleTimeout();

private:
    void createChart();
    void addSeriesToChart(QAbstractBarSeries *series);

private:
    QChart *m_chart;
    QChartView *m_chartView;
    QAbstractAxis *m_barAxis;
    QAbstractAxis *m_valueAxis;
    QList<QAbstractBarSeries *> m_series;
    QMap<const QAbstractBarSeries *, QList<QBarSet *>> m_sets;
    QTimer m_timer;
    QElapsedTimer m_elapsedTimer;
    QHBoxLayout *m_horizontalLayout;
    int m_setCount;
    int m_seriesCount;
    qreal m_extraScroll;
};

#endif // CHARTWIDGET_H
