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/****************************************************************************
**
** 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 <QtCore/QRandomGenerator>
#include <QtCharts/QChartView>
#include <QtCharts/QBarSet>
#include <QtCharts/QLegend>
#include "drilldownseries.h"
#include "drilldownchart.h"
QT_CHARTS_USE_NAMESPACE
int main(int argc, char *argv[])
{
QApplication a(argc, argv);
QMainWindow window;
//! [1]
DrilldownChart *drilldownChart = new DrilldownChart();
drilldownChart->setAnimationOptions(QChart::SeriesAnimations);
//! [1]
//! [2]
// Define categories
const QStringList months = {
"May", "Jun", "Jul", "Aug", "Sep"
};
const QStringList weeks = {
"week 1", "week 2", "week 3", "week 4"
};
const QStringList plants = {
"Habanero", "Lemon Drop", "Starfish", "Aji Amarillo"
};
//! [2]
//! [3]
// Create drilldown structure
DrilldownBarSeries *seasonSeries = new DrilldownBarSeries(months, 320, drilldownChart);
seasonSeries->setName("Crop by month - Season");
// Each month in season series has drilldown series for weekly data
for (int month = 0; month < months.count(); month++) {
// Create drilldown series for every week
DrilldownBarSeries *weeklySeries = new DrilldownBarSeries(weeks, 80, drilldownChart);
seasonSeries->mapDrilldownSeries(month, weeklySeries);
// Drilling down from weekly data brings us back to season data.
for (int week = 0; week < weeks.count(); week++) {
weeklySeries->mapDrilldownSeries(week, seasonSeries);
weeklySeries->setName(QString("Crop by week - " + months.at(month)));
}
// Use clicked signal to implement drilldown
QObject::connect(weeklySeries, &DrilldownBarSeries::clicked,
drilldownChart, &DrilldownChart::handleClicked);
}
// Enable drilldown from season series using clicked signal
QObject::connect(seasonSeries, &DrilldownBarSeries::clicked,
drilldownChart, &DrilldownChart::handleClicked);
//! [3]
//! [4]
// Fill monthly and weekly series with data
for (const QString &plant : plants) {
QBarSet *monthlyCrop = new QBarSet(plant);
for (int month = 0; month < months.count(); month++) {
QBarSet *weeklyCrop = new QBarSet(plant);
for (int week = 0; week < weeks.count(); week++)
*weeklyCrop << QRandomGenerator::global()->bounded(20);
// Get the drilldown series from season series and add crop to it.
seasonSeries->drilldownSeries(month)->append(weeklyCrop);
*monthlyCrop << weeklyCrop->sum();
}
seasonSeries->append(monthlyCrop);
}
//! [4]
//! [5]
// Show season series in initial view
drilldownChart->changeSeries(seasonSeries);
drilldownChart->setTitle(seasonSeries->name());
//! [5]
//! [6]
drilldownChart->axes(Qt::Horizontal).first()->setGridLineVisible(false);
drilldownChart->legend()->setVisible(true);
drilldownChart->legend()->setAlignment(Qt::AlignBottom);
//! [6]
QChartView *chartView = new QChartView(drilldownChart);
window.setCentralWidget(chartView);
window.resize(480, 300);
window.show();
return a.exec();
}
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