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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 <QtCharts/QBarCategoryAxis>
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#include <QtCharts/QCandlestickSeries>
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#include <QtCharts/QChartView>
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#include <QtCharts/QValueAxis>
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#include <QtCore/QDateTime>
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#include <QtWidgets/QApplication>
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#include <QtWidgets/QMainWindow>
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#include "candlestickdatareader.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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//! [1]
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QCandlestickSeries *acmeSeries = new QCandlestickSeries();
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acmeSeries->setName("Acme Ltd");
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acmeSeries->setIncreasingColor(QColor(Qt::green));
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acmeSeries->setDecreasingColor(QColor(Qt::red));
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//! [1]
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//! [2]
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QFile acmeData(":acme");
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if (!acmeData.open(QIODevice::ReadOnly | QIODevice::Text))
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return 1;
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QStringList categories;
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CandlestickDataReader dataReader(&acmeData);
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while (!dataReader.atEnd()) {
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QCandlestickSet *set = dataReader.readCandlestickSet();
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if (set) {
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acmeSeries->append(set);
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categories << QDateTime::fromMSecsSinceEpoch(set->timestamp()).toString("dd");
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}
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}
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//! [2]
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//! [3]
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QChart *chart = new QChart();
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chart->addSeries(acmeSeries);
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chart->setTitle("Acme Ltd Historical Data (July 2015)");
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chart->setAnimationOptions(QChart::SeriesAnimations);
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//! [3]
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//! [4]
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chart->createDefaultAxes();
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QBarCategoryAxis *axisX = qobject_cast<QBarCategoryAxis *>(chart->axes(Qt::Horizontal).at(0));
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axisX->setCategories(categories);
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QValueAxis *axisY = qobject_cast<QValueAxis *>(chart->axes(Qt::Vertical).at(0));
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axisY->setMax(axisY->max() * 1.01);
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axisY->setMin(axisY->min() * 0.99);
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//! [4]
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//! [5]
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chart->legend()->setVisible(true);
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chart->legend()->setAlignment(Qt::AlignBottom);
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//! [5]
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//! [6]
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QChartView *chartView = new QChartView(chart);
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chartView->setRenderHint(QPainter::Antialiasing);
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//! [6]
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//! [7]
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QMainWindow window;
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window.setCentralWidget(chartView);
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window.resize(800, 600);
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window.show();
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//! [7]
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return a.exec();
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}
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