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++ // Copyright (C) 2016 The Qt Company Ltd.
++ // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only
++
++ #include "mainwidget.h"
++ #include "customtablemodel.h"
++ #include "pentool.h"
++ #include <QtCharts/QVBoxPlotModelMapper>
++ #include <QtWidgets/QTableView>
++ #include <QtWidgets/QHeaderView>
++ #include <QtCharts/QChartView>
++ #include <QtCharts/QBoxPlotSeries>
++ #include <QtCharts/QBoxSet>
++ #include <QtCharts/QLegend>
++ #include <QtCharts/QBarCategoryAxis>
++ #include <QtGui/QBrush>
++ #include <QtGui/QColor>
++ #include <QtWidgets/QPushButton>
++ #include <QtWidgets/QComboBox>
++ #include <QtWidgets/QSpinBox>
++ #include <QtWidgets/QCheckBox>
++ #include <QtWidgets/QGridLayout>
++ #include <QtWidgets/QHBoxLayout>
++ #include <QtWidgets/QLabel>
++ #include <QtWidgets/QSpacerItem>
++ #include <QtWidgets/QMessageBox>
++ #include <cmath>
++ #include <QtCore/QDebug>
++ #include <QtGui/QStandardItemModel>
++ #include <QtCharts/QBarCategoryAxis>
++ #include <QtCharts/QLogValueAxis>
++
++ QT_USE_NAMESPACE
++
++ static const QString allCategories[] = {"Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"};
++ static const int maxCategories = 12;
++
++ MainWidget::MainWidget(QWidget *parent) :
++ QWidget(parent),
++ m_chart(0),
++ m_axis(0),
++ m_rowPos(0),
++ m_seriesCount(0)
++ {
++ m_chart = new QChart();
++
++ m_penTool = new PenTool("Whiskers pen", this);
++
++ // Grid layout for the controls for configuring the chart widget
++ QGridLayout *grid = new QGridLayout();
++
++ // Create add a series button
++ QPushButton *addSeriesButton = new QPushButton("Add a series");
++ connect(addSeriesButton, SIGNAL(clicked()), this, SLOT(addSeries()));
++ grid->addWidget(addSeriesButton, m_rowPos++, 1);
++
++ // Create remove a series button
++ QPushButton *removeSeriesButton = new QPushButton("Remove a series");
++ connect(removeSeriesButton, SIGNAL(clicked()), this, SLOT(removeSeries()));
++ grid->addWidget(removeSeriesButton, m_rowPos++, 1);
++
++ // Create add a single box button
++ QPushButton *addBoxButton = new QPushButton("Add a box");
++ connect(addBoxButton, SIGNAL(clicked()), this, SLOT(addBox()));
++ grid->addWidget(addBoxButton, m_rowPos++, 1);
++
++ // Create insert a box button
++ QPushButton *insertBoxButton = new QPushButton("Insert a box");
++ connect(insertBoxButton, SIGNAL(clicked()), this, SLOT(insertBox()));
++ grid->addWidget(insertBoxButton, m_rowPos++, 1);
++
++ // Create add a single box button
++ QPushButton *removeBoxButton = new QPushButton("Remove a box");
++ connect(removeBoxButton, SIGNAL(clicked()), this, SLOT(removeBox()));
++ grid->addWidget(removeBoxButton, m_rowPos++, 1);
++
++ // Create clear button
++ QPushButton *clearButton = new QPushButton("Clear");
++ connect(clearButton, SIGNAL(clicked()), this, SLOT(clear()));
++ grid->addWidget(clearButton, m_rowPos++, 1);
++
++ // Create clear button
++ QPushButton *clearBoxButton = new QPushButton("ClearBox");
++ connect(clearBoxButton, SIGNAL(clicked()), this, SLOT(clearBox()));
++ grid->addWidget(clearBoxButton, m_rowPos++, 1);
++
++ // Create set brush button
++ QPushButton *setBrushButton = new QPushButton("Set brush");
++ connect(setBrushButton, SIGNAL(clicked()), this, SLOT(setBrush()));
++ grid->addWidget(setBrushButton, m_rowPos++, 1);
++
++ // Create set whiskers pen button
++ QPushButton *setWhiskersButton = new QPushButton("Whiskers pen");
++ connect(setWhiskersButton, SIGNAL(clicked()), m_penTool, SLOT(show()));
++ connect(m_penTool, SIGNAL(changed()), this, SLOT(changePen()));
++ grid->addWidget(setWhiskersButton, m_rowPos++, 1);
++
++ // Box width setting
++ m_boxWidthSB = new QDoubleSpinBox();
++ m_boxWidthSB->setMinimum(-1.0);
++ m_boxWidthSB->setMaximum(2.0);
++ m_boxWidthSB->setSingleStep(0.1);
++ m_boxWidthSB->setValue(0.5);
++ grid->addWidget(new QLabel("Box width:"), m_rowPos, 0);
++ grid->addWidget(m_boxWidthSB, m_rowPos++, 1);
++ connect(m_boxWidthSB, SIGNAL(valueChanged(double)), this, SLOT(setBoxWidth(double)));
++
++ initThemeCombo(grid);
++ initCheckboxes(grid);
++
++ QTableView *tableView = new QTableView;
++ m_model = new CustomTableModel(tableView);
++ tableView->setModel(m_model);
++ tableView->setMaximumWidth(200);
++ grid->addWidget(tableView, m_rowPos++, 0, 3, 2, Qt::AlignLeft);
++ tableView->horizontalHeader()->setSectionResizeMode(QHeaderView::Stretch);
++ tableView->verticalHeader()->setSectionResizeMode(QHeaderView::Stretch);
++
++ // add row with empty label to make all the other rows static
++ grid->addWidget(new QLabel(""), grid->rowCount(), 0);
++ grid->setRowStretch(grid->rowCount() - 1, 1);
++
++ // Create chart view with the chart
++ m_chartView = new QChartView(m_chart, this);
++
++ // As a default antialiasing is off
++ m_chartView->setRenderHint(QPainter::Antialiasing, false);
++
++ // Another grid layout as a main layout
++ QGridLayout *mainLayout = new QGridLayout();
++ mainLayout->addLayout(grid, 0, 0);
++ mainLayout->addWidget(m_chartView, 0, 1, 3, 1);
++ setLayout(mainLayout);
++
++ legendToggled(false);
++ animationToggled(false);
++ }
++
++ // Combo box for selecting theme
++ void MainWidget::initThemeCombo(QGridLayout *grid)
++ {
++ QComboBox *chartTheme = new QComboBox();
++ chartTheme->addItem("Default");
++ chartTheme->addItem("Light");
++ chartTheme->addItem("Blue Cerulean");
++ chartTheme->addItem("Dark");
++ chartTheme->addItem("Brown Sand");
++ chartTheme->addItem("Blue NCS");
++ chartTheme->addItem("High Contrast");
++ chartTheme->addItem("Blue Icy");
++ chartTheme->addItem("Qt");
++ connect(chartTheme, SIGNAL(currentIndexChanged(int)),
++ this, SLOT(changeChartTheme(int)));
++ grid->addWidget(new QLabel("Chart theme:"), m_rowPos, 0);
++ grid->addWidget(chartTheme, m_rowPos++, 1);
++ }
++
++ // Different check boxes for customizing chart
++ void MainWidget::initCheckboxes(QGridLayout *grid)
++ {
++ QCheckBox *animationCheckBox = new QCheckBox("Animation");
++ connect(animationCheckBox, SIGNAL(toggled(bool)), this, SLOT(animationToggled(bool)));
++ animationCheckBox->setChecked(false);
++ grid->addWidget(animationCheckBox, m_rowPos++, 0);
++
++ QCheckBox *legendCheckBox = new QCheckBox("Legend");
++ connect(legendCheckBox, SIGNAL(toggled(bool)), this, SLOT(legendToggled(bool)));
++ legendCheckBox->setChecked(false);
++ grid->addWidget(legendCheckBox, m_rowPos++, 0);
++
++ QCheckBox *titleCheckBox = new QCheckBox("Title");
++ connect(titleCheckBox, SIGNAL(toggled(bool)), this, SLOT(titleToggled(bool)));
++ titleCheckBox->setChecked(false);
++ grid->addWidget(titleCheckBox, m_rowPos++, 0);
++
++ QCheckBox *antialiasingCheckBox = new QCheckBox("Antialiasing");
++ connect(antialiasingCheckBox, SIGNAL(toggled(bool)), this, SLOT(antialiasingToggled(bool)));
++ antialiasingCheckBox->setChecked(false);
++ grid->addWidget(antialiasingCheckBox, m_rowPos++, 0);
++
++ QCheckBox *modelMapperCheckBox = new QCheckBox("Use model mapper");
++ connect(modelMapperCheckBox, SIGNAL(toggled(bool)), this, SLOT(modelMapperToggled(bool)));
++ modelMapperCheckBox->setChecked(false);
++ grid->addWidget(modelMapperCheckBox, m_rowPos++, 0);
++
++ m_boxOutlined = new QCheckBox("Box outlined");
++ connect(m_boxOutlined, SIGNAL(toggled(bool)), this, SLOT(boxOutlineToggled(bool)));
++ m_boxOutlined->setChecked(true);
++ grid->addWidget(m_boxOutlined, m_rowPos++, 0);
++ }
++
++ void MainWidget::updateAxis(int categoryCount)
++ {
++ if (!m_axis) {
++ m_chart->createDefaultAxes();
++ m_axis = new QBarCategoryAxis();
++ }
++ QStringList categories;
++ for (int i = 0; i < categoryCount; i++)
++ categories << allCategories[i];
++ m_axis->setCategories(categories);
++ }
++
++ void MainWidget::addSeries()
++ {
++ qDebug() << "BoxPlotTester::MainWidget::addSeries()";
++
++ if (m_seriesCount > 9)
++ return;
++
++ // Initial data
++ QBoxSet *set0 = new QBoxSet();
++ QBoxSet *set1 = new QBoxSet();
++ QBoxSet *set2 = new QBoxSet();
++ QBoxSet *set3 = new QBoxSet();
++ QBoxSet *set4 = new QBoxSet();
++ QBoxSet *set5 = new QBoxSet();
++
++ // low bot med top upp
++ *set0 << -1 << 2 << 4 << 13 << 15;
++ *set1 << 5 << 6 << 7.5 << 8 << 12;
++ *set2 << 3 << 5 << 5.7 << 8 << 9;
++ *set3 << 5 << 6 << 6.8 << 7 << 8;
++ *set4 << 4 << 5 << 5.2 << 6 << 7;
++ *set5 << 4 << 7 << 8.2 << 9 << 10;
++
++ m_series[m_seriesCount] = new QBoxPlotSeries();
++ m_series[m_seriesCount]->append(set0);
++ m_series[m_seriesCount]->append(set1);
++ m_series[m_seriesCount]->append(set2);
++ m_series[m_seriesCount]->append(set3);
++ m_series[m_seriesCount]->append(set4);
++ m_series[m_seriesCount]->append(set5);
++ m_series[m_seriesCount]->setName("Box & Whiskers");
++
++ connect(m_series[m_seriesCount], SIGNAL(clicked(QBoxSet*)), this, SLOT(boxClicked(QBoxSet*)));
++ connect(m_series[m_seriesCount], SIGNAL(pressed(QBoxSet*)), this, SLOT(boxPressed(QBoxSet*)));
++ connect(m_series[m_seriesCount], SIGNAL(released(QBoxSet*)), this, SLOT(boxReleased(QBoxSet*)));
++ connect(m_series[m_seriesCount], SIGNAL(doubleClicked(QBoxSet*)),
++ this, SLOT(boxDoubleClicked(QBoxSet*)));
++ connect(m_series[m_seriesCount], SIGNAL(hovered(bool,QBoxSet*)),
++ this, SLOT(boxHovered(bool,QBoxSet*)));
++ connect(set1, SIGNAL(clicked()), this, SLOT(singleBoxClicked()));
++ connect(set1, SIGNAL(pressed()), this, SLOT(singleBoxPressed()));
++ connect(set1, SIGNAL(released()), this, SLOT(singleBoxReleased()));
++ connect(set1, SIGNAL(doubleClicked()), this, SLOT(singleBoxDoubleClicked()));
++ connect(set2, SIGNAL(hovered(bool)), this, SLOT(singleBoxHovered(bool)));
++
++ m_series[m_seriesCount]->setBoxOutlineVisible(m_boxOutlined->checkState());
++ m_series[m_seriesCount]->setBoxWidth(m_boxWidthSB->value());
++
++ m_chart->addSeries(m_series[m_seriesCount]);
++
++ updateAxis(m_series[0]->count());
++ m_chart->setAxisX(m_axis, m_series[m_seriesCount]);
++
++ m_seriesCount++;
++ }
++
++ void MainWidget::removeSeries()
++ {
++ qDebug() << "BoxPlotTester::MainWidget::removeSeries()";
++
++ if (m_seriesCount > 0) {
++ m_seriesCount--;
++ m_chart->removeSeries(m_series[m_seriesCount]);
++ delete m_series[m_seriesCount];
++ m_series[m_seriesCount] = 0;
++ } else {
++ qDebug() << "Create a series first";
++ }
++ }
++
++ void MainWidget::addBox()
++ {
++ qDebug() << "BoxPlotTester::MainWidget::addBox()";
++
++ if (m_seriesCount > 0 && m_series[0]->count() < maxCategories) {
++ QBoxSet *newSet = new QBoxSet();
++ newSet->setValue(QBoxSet::LowerExtreme, 5.0);
++ newSet->setValue(QBoxSet::LowerQuartile, 6.0);
++ newSet->setValue(QBoxSet::Median, 6.8);
++ newSet->setValue(QBoxSet::UpperQuartile, 7.0);
++ newSet->setValue(QBoxSet::UpperExtreme, 8.0);
++
++ updateAxis(m_series[0]->count() + 1);
++
++ m_series[0]->append(newSet);
++ }
++ }
++
++ void MainWidget::insertBox()
++ {
++ qDebug() << "BoxPlotTester::MainWidget::insertBox()";
++
++ if (m_seriesCount > 0 && m_series[0]->count() < maxCategories) {
++ updateAxis(m_series[0]->count() + 1);
++ for (int i = 0; i < m_seriesCount; i++) {
++ QBoxSet *newSet = new QBoxSet();
++ *newSet << 2 << 6 << 6.8 << 7 << 10;
++ m_series[i]->insert(1, newSet);
++ }
++ }
++ }
++
++ void MainWidget::removeBox()
++ {
++ qDebug() << "BoxPlotTester::MainWidget::removeBox";
++
++ if (m_seriesCount > 0) {
++ for (int i = 0; i < m_seriesCount; i++) {
++ qDebug() << "m_series[i]->count() = " << m_series[i]->count();
++ if (m_series[i]->count()) {
++ QList<QBoxSet *> sets = m_series[i]->boxSets();
++ m_series[i]->remove(sets.at(m_series[i]->count() - 1));
++ }
++ }
++
++ updateAxis(m_series[0]->count());
++ } else {
++ qDebug() << "Create a series first";
++ }
++ }
++
++ void MainWidget::clear()
++ {
++ qDebug() << "BoxPlotTester::MainWidget::clear";
++
++ if (m_seriesCount > 0)
++ m_series[0]->clear();
++ else
++ qDebug() << "Create a series first";
++ }
++
++ void MainWidget::clearBox()
++ {
++ qDebug() << "BoxPlotTester::MainWidget::clearBox";
++
++ if (m_seriesCount > 0) {
++ QList<QBoxSet *> sets = m_series[0]->boxSets();
++ if (sets.count() > 1)
++ sets.at(1)->clear();
++ else
++ qDebug() << "Create a series with at least two items first";
++ } else {
++ qDebug() << "Create a series first";
++ }
++ }
++
++ void MainWidget::setBrush()
++ {
++ qDebug() << "BoxPlotTester::MainWidget::setBrush";
++
++ if (m_seriesCount > 0) {
++ QList<QBoxSet *> sets = m_series[0]->boxSets();
++ if (sets.count() > 1)
++ sets.at(1)->setBrush(QBrush(QColor(Qt::yellow)));
++ else
++ qDebug() << "Create a series with at least two items first";
++ } else {
++ qDebug() << "Create a series first";
++ }
++ }
++
++ void MainWidget::animationToggled(bool enabled)
++ {
++ qDebug() << "BoxPlotTester::Animation toggled to " << enabled;
++ if (enabled)
++ m_chart->setAnimationOptions(QChart::SeriesAnimations);
++ else
++ m_chart->setAnimationOptions(QChart::NoAnimation);
++ }
++
++ void MainWidget::legendToggled(bool enabled)
++ {
++ qDebug() << "BoxPlotTester::Legend toggled to " << enabled;
++ m_chart->legend()->setVisible(enabled);
++ if (enabled)
++ m_chart->legend()->setAlignment(Qt::AlignBottom);
++ }
++
++ void MainWidget::titleToggled(bool enabled)
++ {
++ qDebug() << "BoxPlotTester::Title toggled to " << enabled;
++ if (enabled)
++ m_chart->setTitle("Simple boxplotchart example");
++ else
++ m_chart->setTitle("");
++ }
++
++ void MainWidget::antialiasingToggled(bool enabled)
++ {
++ qDebug() << "BoxPlotTester::antialiasingToggled toggled to " << enabled;
++ m_chartView->setRenderHint(QPainter::Antialiasing, enabled);
++ }
++
++ void MainWidget::boxOutlineToggled(bool visible)
++ {
++ qDebug() << "BoxPlotTester::boxOutlineToggled toggled to " << visible;
++ for (int i = 0; i < m_seriesCount; i++)
++ m_series[i]->setBoxOutlineVisible(visible);
++ }
++
++ void MainWidget::modelMapperToggled(bool enabled)
++ {
++ if (enabled) {
++ m_series[m_seriesCount] = new QBoxPlotSeries();
++
++ int first = 0;
++ int count = 5;
++ QVBoxPlotModelMapper *mapper = new QVBoxPlotModelMapper(this);
++ mapper->setFirstBoxSetColumn(0);
++ mapper->setLastBoxSetColumn(5);
++ mapper->setFirstRow(first);
++ mapper->setRowCount(count);
++ mapper->setSeries(m_series[m_seriesCount]);
++ mapper->setModel(m_model);
++ m_chart->addSeries(m_series[m_seriesCount]);
++
++ m_seriesCount++;
++ } else {
++ removeSeries();
++ }
++ }
++
++ void MainWidget::changeChartTheme(int themeIndex)
++ {
++ qDebug() << "BoxPlotTester::changeChartTheme: " << themeIndex;
++ if (themeIndex == 0)
++ m_chart->setTheme(QChart::ChartThemeLight);
++ else
++ m_chart->setTheme((QChart::ChartTheme) (themeIndex - 1));
++ }
++
++ void MainWidget::boxClicked(QBoxSet *set)
++ {
++ qDebug() << "boxClicked, median = " << set->at(QBoxSet::Median);
++ }
++
++ void MainWidget::boxHovered(bool state, QBoxSet *set)
++ {
++ if (state)
++ qDebug() << "box median " << set->at(QBoxSet::Median) << " hover started";
++ else
++ qDebug() << "box median " << set->at(QBoxSet::Median) << " hover ended";
++ }
++
++ void MainWidget::boxPressed(QBoxSet *set)
++ {
++ qDebug() << "boxPressed, median = " << set->at(QBoxSet::Median);
++ }
++
++ void MainWidget::boxReleased(QBoxSet *set)
++ {
++ qDebug() << "boxReleased, median = " << set->at(QBoxSet::Median);
++ }
++
++ void MainWidget::boxDoubleClicked(QBoxSet *set)
++ {
++ qDebug() << "boxDoubleClicked, median = " << set->at(QBoxSet::Median);
++ }
++
++ void MainWidget::singleBoxClicked()
++ {
++ qDebug() << "singleBoxClicked";
++ }
++
++ void MainWidget::singleBoxPressed()
++ {
++ qDebug() << "singleBoxPressed";
++ }
++
++ void MainWidget::singleBoxReleased()
++ {
++ qDebug() << "singleBoxReleased";
++ }
++
++ void MainWidget::singleBoxDoubleClicked()
++ {
++ qDebug() << "singleBoxDoubleClicked";
++ }
++
++ void MainWidget::singleBoxHovered(bool state)
++ {
++ if (state)
++ qDebug() << "single box hover started";
++ else
++ qDebug() << "single box hover ended";
++ }
++
++ void MainWidget::changePen()
++ {
++ qDebug() << "changePen() = " << m_penTool->pen();
++ for (int i = 0; i < m_seriesCount; i++)
++ m_series[i]->setPen(m_penTool->pen());
++ }
++
++ void MainWidget::setBoxWidth(double width)
++ {
++ qDebug() << "setBoxWidth to " << width;
++
++ for (int i = 0; i < m_seriesCount; i++)
++ m_series[i]->setBoxWidth(qreal(width));
++ }