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/****************************************************************************
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**
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** Copyright (C) 2016 The Qt Company Ltd.
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** Contact: https://www.qt.io/licensing/
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**
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** This file is part of the Qt Charts module of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:GPL$
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** Commercial License Usage
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** Licensees holding valid commercial Qt licenses may use this file in
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** accordance with the 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 The Qt Company. For licensing terms
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** and conditions see https://www.qt.io/terms-conditions. For further
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** information use the contact form at https://www.qt.io/contact-us.
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**
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** GNU General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU
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** General Public License version 3 or (at your option) any later version
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** approved by the KDE Free Qt Foundation. The licenses are as published by
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** the Free Software Foundation and appearing in the file LICENSE.GPL3
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** included in the packaging of this file. Please review the following
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** information to ensure the GNU General Public License requirements will
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** be met: https://www.gnu.org/licenses/gpl-3.0.html.
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#include <QtWidgets/QApplication>
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#include <QtWidgets/QMainWindow>
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#include <QtCharts/QChartView>
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#include <QtCharts/QBarSet>
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#include <QtCharts/QLegend>
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#include "drilldownseries.h"
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#include "drilldownchart.h"
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QT_CHARTS_USE_NAMESPACE
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int main(int argc, char *argv[])
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{
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QApplication a(argc, argv);
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QMainWindow window;
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//! [1]
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DrilldownChart *drilldownChart = new DrilldownChart();
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drilldownChart->setAnimationOptions(QChart::SeriesAnimations);
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//! [1]
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//! [2]
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// Define categories
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QStringList months;
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months << "May" << "Jun" << "Jul" << "Aug" << "Sep";
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QStringList weeks;
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weeks << "week 1" << "week 2" << "week 3" << "week 4";
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QStringList plants;
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plants << "Habanero" << "Lemon Drop" << "Starfish" << "Aji Amarillo";
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//! [2]
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//! [3]
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// Create drilldown structure
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DrilldownBarSeries *seasonSeries = new DrilldownBarSeries(months, drilldownChart);
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seasonSeries->setName("Crop by month - Season");
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// Each month in season series has drilldown series for weekly data
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for (int month = 0; month < months.count(); month++) {
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// Create drilldown series for every week
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DrilldownBarSeries *weeklySeries = new DrilldownBarSeries(weeks, drilldownChart);
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seasonSeries->mapDrilldownSeries(month, weeklySeries);
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// Drilling down from weekly data brings us back to season data.
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for (int week = 0; week < weeks.count(); week++) {
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weeklySeries->mapDrilldownSeries(week, seasonSeries);
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weeklySeries->setName(QString("Crop by week - " + months.at(month)));
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}
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// Use clicked signal to implement drilldown
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QObject::connect(weeklySeries, SIGNAL(clicked(int,QBarSet*)), drilldownChart, SLOT(handleClicked(int,QBarSet*)));
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}
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// Enable drilldown from season series using clicked signal
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QObject::connect(seasonSeries, SIGNAL(clicked(int,QBarSet*)), drilldownChart, SLOT(handleClicked(int,QBarSet*)));
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//! [3]
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//! [4]
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// Fill monthly and weekly series with data
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foreach (QString plant, plants) {
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QBarSet *monthlyCrop = new QBarSet(plant);
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for (int month = 0; month < months.count(); month++) {
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QBarSet *weeklyCrop = new QBarSet(plant);
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for (int week = 0; week < weeks.count(); week++)
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*weeklyCrop << (qrand() % 20);
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// Get the drilldown series from season series and add crop to it.
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seasonSeries->drilldownSeries(month)->append(weeklyCrop);
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*monthlyCrop << weeklyCrop->sum();
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}
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seasonSeries->append(monthlyCrop);
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}
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//! [4]
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//! [5]
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// Show season series in initial view
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drilldownChart->changeSeries(seasonSeries);
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drilldownChart->setTitle(seasonSeries->name());
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//! [5]
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//! [6]
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drilldownChart->axisX()->setGridLineVisible(false);
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drilldownChart->legend()->setVisible(true);
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drilldownChart->legend()->setAlignment(Qt::AlignBottom);
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//! [6]
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QChartView *chartView = new QChartView(drilldownChart);
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window.setCentralWidget(chartView);
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window.resize(480, 300);
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window.show();
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return a.exec();
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}
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