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// Copyright (C) 2023 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only
#include "polarchartview.h"
#include "polarchartwidget.h"
#include <QAreaSeries>
#include <QChart>
#include <QLineSeries>
#include <QPolarChart>
#include <QScatterSeries>
#include <QSplineSeries>
#include <QValueAxis>
PolarChartWidget::PolarChartWidget(QWidget *parent)
: ContentWidget(parent)
{
const qreal angularMin = -100;
const qreal angularMax = 100;
const qreal radialMin = -100;
const qreal radialMax = 100;
auto series1 = new QScatterSeries;
series1->setName("scatter");
for (int i = angularMin; i <= angularMax; i += 10)
series1->append(i, (i / radialMax) * radialMax + 8.0);
auto series2 = new QSplineSeries;
series2->setName("spline");
for (int i = angularMin; i <= angularMax; i += 10)
series2->append(i, (i / radialMax) * radialMax);
auto series3 = new QLineSeries;
series3->setName("star outer");
qreal ad = (angularMax - angularMin) / 8;
qreal rd = (radialMax - radialMin) / 3 * 1.3;
series3->append(angularMin, radialMax);
series3->append(angularMin + ad * 1, radialMin + rd);
series3->append(angularMin + ad * 2, radialMax);
series3->append(angularMin + ad * 3, radialMin + rd);
series3->append(angularMin + ad * 4, radialMax);
series3->append(angularMin + ad * 5, radialMin + rd);
series3->append(angularMin + ad * 6, radialMax);
series3->append(angularMin + ad * 7, radialMin + rd);
series3->append(angularMin + ad * 8, radialMax);
auto series4 = new QLineSeries;
series4->setName("star inner");
ad = (angularMax - angularMin) / 8;
rd = (radialMax - radialMin) / 3;
series4->append(angularMin, radialMax);
series4->append(angularMin + ad * 1, radialMin + rd);
series4->append(angularMin + ad * 2, radialMax);
series4->append(angularMin + ad * 3, radialMin + rd);
series4->append(angularMin + ad * 4, radialMax);
series4->append(angularMin + ad * 5, radialMin + rd);
series4->append(angularMin + ad * 6, radialMax);
series4->append(angularMin + ad * 7, radialMin + rd);
series4->append(angularMin + ad * 8, radialMax);
auto series5 = new QAreaSeries;
series5->setName("star area");
series5->setUpperSeries(series3);
series5->setLowerSeries(series4);
series5->setOpacity(0.5);
//![1]
auto chart = new QPolarChart;
//![1]
chart->addSeries(series1);
chart->addSeries(series2);
chart->addSeries(series3);
chart->addSeries(series4);
chart->addSeries(series5);
chart->setTitle("Use arrow keys to scroll, +/- to zoom, and space to switch chart type.");
//![2]
auto angularAxis = new QValueAxis;
angularAxis->setTickCount(9); // First and last ticks are co-located on 0/360 angle.
angularAxis->setLabelFormat("%.1f");
angularAxis->setShadesVisible(true);
angularAxis->setShadesBrush(QBrush(QColor(249, 249, 255)));
chart->addAxis(angularAxis, QPolarChart::PolarOrientationAngular);
auto radialAxis = new QValueAxis;
radialAxis->setTickCount(9);
radialAxis->setLabelFormat("%d");
chart->addAxis(radialAxis, QPolarChart::PolarOrientationRadial);
//![2]
series1->attachAxis(radialAxis);
series1->attachAxis(angularAxis);
series2->attachAxis(radialAxis);
series2->attachAxis(angularAxis);
series3->attachAxis(radialAxis);
series3->attachAxis(angularAxis);
series4->attachAxis(radialAxis);
series4->attachAxis(angularAxis);
series5->attachAxis(radialAxis);
series5->attachAxis(angularAxis);
radialAxis->setRange(radialMin, radialMax);
angularAxis->setRange(angularMin, angularMax);
auto chartView = new PolarChartView(this);
chartView->setChart(chart);
setDefaultChartView(chartView);
}
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