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

#include <QtWidgets/QApplication>
#include <QtWidgets/QMainWindow>
#include <QtCharts/QChartView>
#include <QtCharts/QLineSeries>
#include <QtCharts/QValueAxis>
#include <QTimer>
#include <QDebug>

QT_CHARTS_USE_NAMESPACE

int main(int argc, char *argv[])
{
    QApplication a(argc, argv);

//![1]
    QLineSeries *series = new QLineSeries();
//![1]

//![2]
    series->append(0, 6);
    series->append(2, 4);
    series->append(3, 8);
    series->append(7, 4);
    series->append(10, 5);
    *series << QPointF(11, 1) << QPointF(13, 3) << QPointF(17, 6) << QPointF(18, 3) << QPointF(20, 2);
//![2]

//![3]
    QChart *chart = new QChart();
    chart->legend()->hide();
    chart->addSeries(series);
    chart->createDefaultAxes();
    chart->setTitle("Simple line chart example");
//![3]

    QValueAxis *axisY = qobject_cast<QValueAxis *>(
                series->attachedAxes().at(0)->orientation() == Qt::Horizontal
            ? series->attachedAxes()[1] : series->attachedAxes()[0]);
    QValueAxis *axisX = qobject_cast<QValueAxis *>(
                series->attachedAxes().at(1)->orientation() == Qt::Horizontal
            ? series->attachedAxes()[1] : series->attachedAxes()[0]);
    QPen pen = series->pen();
    pen.setWidth(5);
    series->setPen(pen);

//![4]
    QChartView *chartView = new QChartView(chart);
    chartView->setRenderHint(QPainter::Antialiasing);
//![4]


//![5]
    QMainWindow window;
    window.setCentralWidget(chartView);
    window.resize(400, 300);
    window.show();
//![5]

    QTimer timer;
    timer.setSingleShot(false);
    timer.setInterval(6000);
    timer.start();
    int count = 0;
    QObject::connect(&timer, &QTimer::timeout, [&](){
        switch (++count) {
        case 1:
           axisX->setReverse(false);
           axisY->setReverse(false);
            break;
        case 3:
            axisX->setReverse(true);
            axisY->setReverse(false);
            break;
        case 5:
            axisX->setReverse(false);
            axisY->setReverse(true);
            break;
        case 7:
            axisX->setReverse(true);
            axisY->setReverse(true);
            break;
        default:
            qDebug() << "X:" << axisX->isReverse() << "Y:" << axisY->isReverse();
            QPointF point(chart->plotArea().topLeft());
            QPointF value = chart->mapToValue(point, series);
            qDebug() << "mapToValue:" << point << "->" << value;
            QPointF newPoint = chart->mapToPosition(value, series);
            qDebug() << "mapToPosition:" << value << "->" << newPoint;
            if (count > 7)
                count = 0;
            break;
        }
    });

    QObject::connect(series, &QXYSeries::pressed, [&](const QPointF &point) {
       qDebug() << "pressed:" << point;
    });

    return a.exec();
}