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++ // Copyright (C) 2023 The Qt Company Ltd.
++ // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
++ // Qt-Security score:critical reason:data-parser
++
++ #include "rainfalldata.h"
++ #include <QtCore/qfile.h>
++ #include <QtCore/qrangemodel.h>
++ #include <QtCore/qlist.h>
++ #include <QtCore/qtextstream.h>
++ #include <QtGraphs/q3dscene.h>
++ #include <QtGraphs/qbar3dseries.h>
++ #include <QtGraphs/qcategory3daxis.h>
++ #include <QtGraphs/qgraphstheme.h>
++ #include <QtGraphs/qitemmodelbardataproxy.h>
++ #include <QtGraphs/qvalue3daxis.h>
++
++ #include <array>
++
++ using namespace Qt::StringLiterals;
++
++ //! [1]
++ using YearlyData = std::array<double, 12>;
++ using ModelData = QList<YearlyData>;
++
++ static ModelData readData(const QString &fileName, int *firstYear)
++ {
++ ModelData result;
++
++ *firstYear = -1;
++
++ // Read data from a data file into the data item list
++ QFile dataFile(fileName);
++ if (!dataFile.open(QIODevice::ReadOnly | QIODevice::Text)) {
++ qWarning() << "Unable to open data file:" << dataFile.fileName() << dataFile.errorString();
++ return result;
++ }
++
++ QTextStream stream(&dataFile);
++ int lastYear = -1;
++ while (!stream.atEnd()) {
++ QString line = stream.readLine();
++ if (line.startsWith(u'#')) // Ignore comments
++ continue;
++ const auto strList = QStringView{line}.split(',', Qt::SkipEmptyParts);
++ // Each line has three data items: Year, month, and rainfall value
++ if (strList.size() < 3) {
++ qWarning() << "Invalid row read from data:" << line;
++ continue;
++ }
++ // Store year and month as int, and rainfall value as double
++ bool yearOk{};
++ bool monthOk{};
++ bool valueOk{};
++ const int year = strList.at(0).trimmed().toInt(&yearOk);
++ const int month = strList.at(1).trimmed().toInt(&monthOk);
++ const double value = strList.at(2).trimmed().toDouble(&valueOk);
++ if (!yearOk || !monthOk || month < 1 || month > 12 || !valueOk) {
++ qWarning() << "Invalid row values:" << line;
++ continue;
++ }
++ if (year != lastYear) {
++ if (lastYear == -1) {
++ *firstYear = year;
++ } else if (year != lastYear + 1) {
++ qWarning() << "Non-consecutive years" << year << lastYear;
++ return {};
++ }
++ lastYear = year;
++ result.emplace_back(YearlyData{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0});
++ }
++ result.back()[month - 1] = value;
++ }
++ return result;
++ }
++ //! [1]
++
++ RainfallData::RainfallData()
++ {
++ // Create proxy and series
++ //! [0]
++ int firstYear{};
++ auto data = readData(":/data/raindata.txt"_L1, &firstYear);
++ Q_ASSERT(!data.isEmpty());
++ updateYearsList(firstYear, firstYear + int(data.size()) - 1);
++ auto *model = new QRangeModel(data, this);
++
++ m_proxy = new QItemModelBarDataProxy(model);
++ m_proxy->setUseModelCategories(true);
++ m_series = new QBar3DSeries(m_proxy);
++ //! [0]
++
++ m_series->setItemLabelFormat(u"%.1f mm"_s);
++
++ // Create the axes
++ m_rowAxis = new QCategory3DAxis(this);
++ m_colAxis = new QCategory3DAxis(this);
++ m_valueAxis = new QValue3DAxis(this);
++ m_rowAxis->setAutoAdjustRange(true);
++ m_colAxis->setAutoAdjustRange(true);
++ m_valueAxis->setAutoAdjustRange(true);
++
++ // Set axis labels and titles
++ QStringList months{"January",
++ "February",
++ "March",
++ "April",
++ "May",
++ "June",
++ "July",
++ "August",
++ "September",
++ "October",
++ "November",
++ "December"};
++ m_rowAxis->setTitle("Year");
++ m_colAxis->setTitle("Month");
++ m_valueAxis->setTitle("rainfall (mm)");
++ m_valueAxis->setSegmentCount(5);
++ m_rowAxis->setLabels(m_years);
++ m_colAxis->setLabels(months);
++ m_rowAxis->setTitleVisible(true);
++ m_colAxis->setTitleVisible(true);
++ m_valueAxis->setTitleVisible(true);
++ }
++
++ RainfallData::~RainfallData() = default;
++
++ void RainfallData::updateYearsList(int start, int end)
++ {
++ m_years.clear();
++
++ for (int i = start; i <= end; ++i)
++ m_years << QString::number(i);
++ }