File indexing completed on 2024-12-15 03:44:59 

0001 /*
0002     SPDX-FileCopyrightText: 2017 Volker Krause <vkrause@kde.org>
0003 
0004     SPDX-License-Identifier: MIT
0005 */
0006 
0007 #include "totalaggregator.h"
0008 #include "chartutil.h"
0009 
0010 #include <model/timeaggregationmodel.h>
0011 
0012 #include <QtCharts/QChart>
0013 #include <QtCharts/QDateTimeAxis>
0014 #include <QtCharts/QLineSeries>
0015 #include <QtCharts/QValueAxis>
0016 #include <QtCharts/QVXYModelMapper>
0017 
0018 #include <QAbstractItemModel>
0019 
0020 #include <numeric>
0021 
0022 using namespace KUserFeedback::Console;
0023 #if QT_VERSION < QT_VERSION_CHECK(6, 0, 0)
0024 using namespace QtCharts;
0025 #endif
0026 
0027 TotalAggregator::TotalAggregator() = default;
0028 TotalAggregator::~TotalAggregator() = default;
0029 
0030 Aggregator::ChartModes TotalAggregator::chartModes() const
0031 {
0032     return Timeline;
0033 }
0034 
0035 QString TotalAggregator::displayName() const
0036 {
0037     return tr("Samples");
0038 }
0039 
0040 QAbstractItemModel* TotalAggregator::timeAggregationModel()
0041 {
0042     return sourceModel();
0043 }
0044 
0045 QChart* TotalAggregator::timelineChart()
0046 {
0047     if (!m_timelineChart) {
0048         m_timelineChart.reset(new QChart);
0049         ChartUtil::applyTheme(m_timelineChart.get());
0050         auto xAxis = new QDateTimeAxis(m_timelineChart.get());
0051         xAxis->setFormat(QStringLiteral("yyyy-MM-dd")); // TODO, follow aggregation mode
0052         auto yAxis = new QValueAxis(m_timelineChart.get());
0053         yAxis->setMinorTickCount(4);
0054         m_timelineChart->addAxis(xAxis, Qt::AlignBottom);
0055         m_timelineChart->addAxis(yAxis, Qt::AlignLeft);
0056         updateTimelineChart();
0057 
0058         QObject::connect(sourceModel(), &QAbstractItemModel::modelReset, m_timelineChart.get(), [this]() {
0059             updateTimelineChart();
0060         });
0061     }
0062 
0063     return m_timelineChart.get();
0064 }
0065 
0066 void TotalAggregator::updateTimelineChart()
0067 {
0068     if (!m_timelineChart)
0069         return;
0070     m_timelineChart->removeAllSeries();
0071     if (timeAggregationModel()->rowCount() <= 0)
0072         return;
0073 
0074     auto series = new QLineSeries(m_timelineChart.get());
0075     series->setName(displayName());
0076     auto mapper = new QVXYModelMapper(series);
0077     mapper->setModel(timeAggregationModel());
0078     mapper->setXColumn(0);
0079     mapper->setYColumn(1);
0080     mapper->setFirstRow(0);
0081     mapper->setSeries(series);
0082     m_timelineChart->addSeries(series);
0083 
0084     series->attachAxis(m_timelineChart->axisX());
0085     series->attachAxis(m_timelineChart->axisY());
0086 
0087     const auto beginDt = timeAggregationModel()->index(0, 0).data(TimeAggregationModel::DateTimeRole).toDateTime();
0088     const auto endDt = timeAggregationModel()->index(timeAggregationModel()->rowCount() - 1, 0).data(TimeAggregationModel::DateTimeRole).toDateTime();
0089     m_timelineChart->axisX()->setRange(beginDt, endDt);
0090     qobject_cast<QDateTimeAxis*>(m_timelineChart->axisX())->setTickCount(std::min(timeAggregationModel()->rowCount(), 12));
0091     const auto max = timeAggregationModel()->index(0, 0).data(TimeAggregationModel::MaximumValueRole).toInt();
0092     m_timelineChart->axisY()->setRange(0, max);
0093     qobject_cast<QValueAxis*>(m_timelineChart->axisY())->applyNiceNumbers();
0094 }