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// Copyright (C) 2025 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only
#include "bargraphmodifier.h"
#include <QtCore/qmath.h>
#include <QtGraphs/q3dscene.h>
#include <QtGraphs/qbar3dseries.h>
#include <QtGraphs/qbardataproxy.h>
#include <QtGraphs/qcategory3daxis.h>
#include <QtGraphs/qgraphstheme.h>
#include <QtGraphs/qvalue3daxis.h>
#include <QtWidgets/qcombobox.h>
using namespace Qt::StringLiterals;
// TODO: Many of the values do not affect custom proxy series now - should be fixed
//! [set up the graph]
BarGraphModifier::BarGraphModifier(Q3DBarsWidgetItem *bargraph, QObject *parent)
: QObject(parent)
, m_graph(bargraph)
, m_temperatureAxis(new QValue3DAxis)
, m_yearAxis(new QCategory3DAxis)
, m_monthAxis(new QCategory3DAxis)
, m_primarySeries(new QBar3DSeries)
, m_secondarySeries(new QBar3DSeries)
, m_celsiusString(u"°C"_s)
{
m_graph->setShadowQuality(QtGraphs3D::ShadowQuality::SoftMedium);
m_graph->setMultiSeriesUniform(true);
m_graph->activeTheme()->setPlotAreaBackgroundVisible(false);
m_graph->activeTheme()->setLabelFont(QFont("Times New Roman", m_fontSize));
m_graph->activeTheme()->setLabelBackgroundVisible(true);
m_graph->setSelectionMode(QtGraphs3D::SelectionFlag::None);
m_months = {"January",
"February",
"March",
"April",
"May",
"June",
"July",
"August",
"September",
"October",
"November",
"December"};
m_years = {"2015", "2016", "2017", "2018", "2019", "2020", "2021", "2022"};
m_temperatureAxis->setTitle("Average temperature");
m_temperatureAxis->setSegmentCount(m_segments);
m_temperatureAxis->setSubSegmentCount(m_subSegments);
m_temperatureAxis->setRange(m_minval, m_maxval);
m_temperatureAxis->setLabelFormat(u"%.1f "_s + m_celsiusString);
m_temperatureAxis->setLabelAutoAngle(30.0f);
m_temperatureAxis->setTitleVisible(true);
m_yearAxis->setTitle("Year");
m_yearAxis->setLabelAutoAngle(30.0f);
m_yearAxis->setTitleVisible(true);
m_monthAxis->setTitle("Month");
m_monthAxis->setLabelAutoAngle(30.0f);
m_monthAxis->setTitleVisible(true);
m_graph->setValueAxis(m_temperatureAxis);
m_graph->setRowAxis(m_yearAxis);
m_graph->setColumnAxis(m_monthAxis);
m_primarySeries->setItemLabelFormat(u"Oulu - @colLabel @rowLabel: @valueLabel"_s);
m_primarySeries->setMesh(QAbstract3DSeries::Mesh::BevelBar);
m_primarySeries->setMeshSmooth(false);
m_secondarySeries->setItemLabelFormat(u"Helsinki - @colLabel @rowLabel: @valueLabel"_s);
m_secondarySeries->setMesh(QAbstract3DSeries::Mesh::BevelBar);
m_secondarySeries->setMeshSmooth(false);
m_secondarySeries->setVisible(false);
m_graph->addSeries(m_primarySeries);
m_graph->addSeries(m_secondarySeries);
changePresetCamera();
resetTemperatureData();
connect(m_graph,
&Q3DBarsWidgetItem::sliceImageChanged,
this,
&BarGraphModifier::sliceImageChanged);
}
void BarGraphModifier::resetTemperatureData()
{
static const float tempOulu[8][12] = {
{-7.4f, -2.4f, 0.0f, 3.0f, 8.2f, 11.6f, 14.7f, 15.4f, 11.4f, 4.2f, 2.1f, -2.3f}, // 2015
{-13.4f, -3.9f, -1.8f, 3.1f, 10.6f, 13.7f, 17.8f, 13.6f, 10.7f, 3.5f, -3.1f, -4.2f}, // 2016
{-5.7f, -6.7f, -3.0f, -0.1f, 4.7f, 12.4f, 16.1f, 14.1f, 9.4f, 3.0f, -0.3f, -3.2f}, // 2017
{-6.4f, -11.9f, -7.4f, 1.9f, 11.4f, 12.4f, 21.5f, 16.1f, 11.0f, 4.4f, 2.1f, -4.1f}, // 2018
{-11.7f, -6.1f, -2.4f, 3.9f, 7.2f, 14.5f, 15.6f, 14.4f, 8.5f, 2.0f, -3.0f, -1.5f}, // 2019
{-2.1f, -3.4f, -1.8f, 0.6f, 7.0f, 17.1f, 15.6f, 15.4f, 11.1f, 5.6f, 1.9f, -1.7f}, // 2020
{-9.6f, -11.6f, -3.2f, 2.4f, 7.8f, 17.3f, 19.4f, 14.2f, 8.0f, 5.2f, -2.2f, -8.6f}, // 2021
{-7.3f, -6.4f, -1.8f, 1.3f, 8.1f, 15.5f, 17.6f, 17.6f, 9.1f, 5.4f, -1.5f, -4.4f} // 2022
};
static const float tempHelsinki[8][12] = {
{-2.0f, -0.1f, 1.8f, 5.1f, 9.7f, 13.7f, 16.3f, 17.3f, 12.7f, 5.4f, 4.6f, 2.1f}, // 2015
{-10.3f, -0.6f, 0.0f, 4.9f, 14.3f, 15.7f, 17.7f, 16.0f, 12.7f, 4.6f, -1.0f, -0.9f}, // 2016
{-2.9f, -3.3f, 0.7f, 2.3f, 9.9f, 13.8f, 16.1f, 15.9f, 11.4f, 5.0f, 2.7f, 0.7f}, // 2017
{-2.2f, -8.4f, -4.7f, 5.0f, 15.3f, 15.8f, 21.2f, 18.2f, 13.3f, 6.7f, 2.8f, -2.0f}, // 2018
{-6.2f, -0.5f, -0.3f, 6.8f, 10.6f, 17.9f, 17.5f, 16.8f, 11.3f, 5.2f, 1.8f, 1.4f}, // 2019
{1.9f, 0.5f, 1.7f, 4.5f, 9.5f, 18.4f, 16.5f, 16.8f, 13.0f, 8.2f, 4.4f, 0.9f}, // 2020
{-4.7f, -8.1f, -0.9f, 4.5f, 10.4f, 19.2f, 20.9f, 15.4f, 9.5f, 8.0f, 1.5f, -6.7f}, // 2021
{-3.3f, -2.2f, -0.2f, 3.3f, 9.6f, 16.9f, 18.1f, 18.9f, 9.2f, 7.6f, 2.3f, -3.4f} // 2022
};
QBarDataArray dataSet;
QBarDataArray dataSet2;
dataSet.reserve(m_years.size());
for (qsizetype year = 0; year < m_years.size(); ++year) {
QBarDataRow dataRow(m_months.size());
QBarDataRow dataRow2(m_months.size());
for (qsizetype month = 0; month < m_months.size(); ++month) {
dataRow[month].setValue(tempOulu[year][month]);
dataRow2[month].setValue(tempHelsinki[year][month]);
}
dataSet.append(dataRow);
dataSet2.append(dataRow2);
}
m_primarySeries->dataProxy()->resetArray(dataSet, m_years, m_months);
m_secondarySeries->dataProxy()->resetArray(dataSet2, m_years, m_months);
}
void BarGraphModifier::changePresetCamera()
{
m_graph->setCameraTargetPosition(QVector3D(0.0f, 0.0f, 0.0f));
static int preset = int(QtGraphs3D::CameraPreset::Front);
m_graph->setCameraPreset((QtGraphs3D::CameraPreset) preset);
if (++preset > int(QtGraphs3D::CameraPreset::DirectlyBelow))
preset = int(QtGraphs3D::CameraPreset::FrontLow);
}
void BarGraphModifier::renderSliceToImage(QtGraphs3D::SliceCaptureType sliceType, int requestedIndex)
{
m_graph->renderSliceToImage(requestedIndex, sliceType);
}
void BarGraphModifier::changeSelectionMode(bool checked, bool nopick)
{
auto mode = nopick
? QtGraphs3D::SelectionFlag::None
: (checked ? (QtGraphs3D::SelectionFlag::Row | QtGraphs3D::SelectionFlag::Slice)
: (QtGraphs3D::SelectionFlag::Column
| QtGraphs3D::SelectionFlag::Slice));
m_graph->setSelectionMode(mode);
}