Graph Gallery

 // Copyright (C) 2023 The Qt Company Ltd.
 // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause

 #include "bargraph.h"

 #include <QtGui/qfontdatabase.h>
 #include <QtWidgets/qboxlayout.h>
 #include <QtWidgets/qbuttongroup.h>
 #include <QtWidgets/qcheckbox.h>
 #include <QtWidgets/qfontcombobox.h>
 #include <QtWidgets/qlabel.h>
 #include <QtWidgets/qpushbutton.h>
 #include <QtWidgets/qradiobutton.h>
 #include <QtWidgets/qslider.h>

 using namespace Qt::StringLiterals;

 BarGraph::BarGraph()
 {
     m_barsGraph = new Q3DBars();
     initialize();
 }

 void BarGraph::initialize()
 {
     m_barsWidget = new QWidget;
     auto *hLayout = new QHBoxLayout(m_barsWidget);
     QSize screenSize = m_barsGraph->screen()->size();
     m_barsGraph->setMinimumSize(QSize(screenSize.width() / 2, screenSize.height() / 1.75));
     m_barsGraph->setMaximumSize(screenSize);
     m_barsGraph->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Expanding);
     m_barsGraph->setFocusPolicy(Qt::StrongFocus);
     hLayout->addWidget(m_barsGraph, 1);

     auto *vLayout = new QVBoxLayout();
     hLayout->addLayout(vLayout);

     auto *themeList = new QComboBox(m_barsWidget);
     themeList->addItem(u"Qt"_s);
     themeList->addItem(u"Primary Colors"_s);
     themeList->addItem(u"Stone Moss"_s);
     themeList->addItem(u"Army Blue"_s);
     themeList->addItem(u"Retro"_s);
     themeList->addItem(u"Ebony"_s);
     themeList->addItem(u"Isabelle"_s);
     themeList->setCurrentIndex(0);

     auto *labelButton = new QPushButton(m_barsWidget);
     labelButton->setText(u"Change label style"_s);

     auto *smoothCheckBox = new QCheckBox(m_barsWidget);
     smoothCheckBox->setText(u"Smooth bars"_s);
     smoothCheckBox->setChecked(false);

     auto *barStyleList = new QComboBox(m_barsWidget);
     const QMetaObject &metaObj = QAbstract3DSeries::staticMetaObject;
     int index = metaObj.indexOfEnumerator("Mesh");
     QMetaEnum metaEnum = metaObj.enumerator(index);
     barStyleList->addItem(u"Bar"_s, metaEnum.value(static_cast<int>(QAbstract3DSeries::Mesh::Bar)));
     barStyleList->addItem(u"Pyramid"_s,
                           metaEnum.value(static_cast<int>(QAbstract3DSeries::Mesh::Pyramid)));
     barStyleList->addItem(u"Cone"_s,
                           metaEnum.value(static_cast<int>(QAbstract3DSeries::Mesh::Cone)));
     barStyleList->addItem(u"Cylinder"_s,
                           metaEnum.value(static_cast<int>(QAbstract3DSeries::Mesh::Cylinder)));
     barStyleList->addItem(u"Bevel bar"_s,
                           metaEnum.value(static_cast<int>(QAbstract3DSeries::Mesh::BevelBar)));
     barStyleList->addItem(u"Sphere"_s,
                           metaEnum.value(static_cast<int>(QAbstract3DSeries::Mesh::Sphere)));
     barStyleList->addItem(u"UserDefined"_s,
                           metaEnum.value(static_cast<int>(QAbstract3DSeries::Mesh::UserDefined)));
     barStyleList->setCurrentIndex(4);

     auto *cameraButton = new QPushButton(m_barsWidget);
     cameraButton->setText(u"Change camera preset"_s);

     auto *zoomToSelectedButton = new QPushButton(m_barsWidget);
     zoomToSelectedButton->setText(u"Zoom to selected bar"_s);

     auto *selectionModeList = new QComboBox(m_barsWidget);
     selectionModeList->addItem(u"None"_s, int(QAbstract3DGraph::SelectionNone));
     selectionModeList->addItem(u"Bar"_s, int(QAbstract3DGraph::SelectionItem));
     selectionModeList->addItem(u"Row"_s, int(QAbstract3DGraph::SelectionRow));
     selectionModeList->addItem(u"Bar and Row"_s, int(QAbstract3DGraph::SelectionItemAndRow));
     selectionModeList->addItem(u"Column"_s, int(QAbstract3DGraph::SelectionColumn));
     selectionModeList->addItem(u"Bar and Column"_s, int(QAbstract3DGraph::SelectionItemAndColumn));
     selectionModeList->addItem(u"Row and Column"_s, int(QAbstract3DGraph::SelectionRowAndColumn));
     selectionModeList->addItem(u"Bar, Row and Column"_s,
                                int(QAbstract3DGraph::SelectionItemRowAndColumn));
     selectionModeList->addItem(u"Slice into Row"_s,
                                int(QAbstract3DGraph::SelectionSlice
                                    | QAbstract3DGraph::SelectionRow));
     selectionModeList->addItem(u"Slice into Row and Item"_s,
                                int(QAbstract3DGraph::SelectionSlice
                                    | QAbstract3DGraph::SelectionItemAndRow));
     selectionModeList->addItem(u"Slice into Column"_s,
                                int(QAbstract3DGraph::SelectionSlice
                                    | QAbstract3DGraph::SelectionColumn));
     selectionModeList->addItem(u"Slice into Column and Item"_s,
                                int(QAbstract3DGraph::SelectionSlice
                                    | QAbstract3DGraph::SelectionItemAndColumn));
     selectionModeList->addItem(u"Multi: Bar, Row, Col"_s,
                                int(QAbstract3DGraph::SelectionItemRowAndColumn
                                    | QAbstract3DGraph::SelectionMultiSeries));
     selectionModeList->addItem(u"Multi, Slice: Row, Item"_s,
                                int(QAbstract3DGraph::SelectionSlice
                                    | QAbstract3DGraph::SelectionItemAndRow
                                    | QAbstract3DGraph::SelectionMultiSeries));
     selectionModeList->addItem(u"Multi, Slice: Col, Item"_s,
                                int(QAbstract3DGraph::SelectionSlice
                                    | QAbstract3DGraph::SelectionItemAndColumn
                                    | QAbstract3DGraph::SelectionMultiSeries));
     selectionModeList->setCurrentIndex(1);

     auto *backgroundCheckBox = new QCheckBox(m_barsWidget);
     backgroundCheckBox->setText(u"Show background"_s);
     backgroundCheckBox->setChecked(false);

     auto *gridCheckBox = new QCheckBox(m_barsWidget);
     gridCheckBox->setText(u"Show grid"_s);
     gridCheckBox->setChecked(true);

     auto *seriesCheckBox = new QCheckBox(m_barsWidget);
     seriesCheckBox->setText(u"Show second series"_s);
     seriesCheckBox->setChecked(false);

     auto *reverseValueAxisCheckBox = new QCheckBox(m_barsWidget);
     reverseValueAxisCheckBox->setText(u"Reverse value axis"_s);
     reverseValueAxisCheckBox->setChecked(false);

     auto *rotationSliderX = new QSlider(Qt::Horizontal, m_barsWidget);
     rotationSliderX->setTickInterval(30);
     rotationSliderX->setTickPosition(QSlider::TicksBelow);
     rotationSliderX->setMinimum(-180);
     rotationSliderX->setValue(0);
     rotationSliderX->setMaximum(180);
     auto *rotationSliderY = new QSlider(Qt::Horizontal, m_barsWidget);
     rotationSliderY->setTickInterval(15);
     rotationSliderY->setTickPosition(QSlider::TicksAbove);
     rotationSliderY->setMinimum(-90);
     rotationSliderY->setValue(0);
     rotationSliderY->setMaximum(90);

     auto *fontSizeSlider = new QSlider(Qt::Horizontal, m_barsWidget);
     fontSizeSlider->setTickInterval(10);
     fontSizeSlider->setTickPosition(QSlider::TicksBelow);
     fontSizeSlider->setMinimum(1);
     fontSizeSlider->setValue(30);
     fontSizeSlider->setMaximum(100);

     auto *fontList = new QFontComboBox(m_barsWidget);
     fontList->setCurrentFont(QFont("Times New Roman"));

     auto *shadowQuality = new QComboBox(m_barsWidget);
     shadowQuality->addItem(u"None"_s);
     shadowQuality->addItem(u"Low"_s);
     shadowQuality->addItem(u"Medium"_s);
     shadowQuality->addItem(u"High"_s);
     shadowQuality->addItem(u"Low Soft"_s);
     shadowQuality->addItem(u"Medium Soft"_s);
     shadowQuality->addItem(u"High Soft"_s);
     shadowQuality->setCurrentIndex(5);

     auto *rangeList = new QComboBox(m_barsWidget);
     rangeList->addItem(u"2015"_s);
     rangeList->addItem(u"2016"_s);
     rangeList->addItem(u"2017"_s);
     rangeList->addItem(u"2018"_s);
     rangeList->addItem(u"2019"_s);
     rangeList->addItem(u"2020"_s);
     rangeList->addItem(u"2021"_s);
     rangeList->addItem(u"2022"_s);
     rangeList->addItem(u"All"_s);
     rangeList->setCurrentIndex(8);

     auto *axisTitlesVisibleCB = new QCheckBox(m_barsWidget);
     axisTitlesVisibleCB->setText(u"Axis titles visible"_s);
     axisTitlesVisibleCB->setChecked(true);

     auto *axisTitlesFixedCB = new QCheckBox(m_barsWidget);
     axisTitlesFixedCB->setText(u"Axis titles fixed"_s);
     axisTitlesFixedCB->setChecked(true);

     auto *axisLabelRotationSlider = new QSlider(Qt::Horizontal, m_barsWidget);
     axisLabelRotationSlider->setTickInterval(10);
     axisLabelRotationSlider->setTickPosition(QSlider::TicksBelow);
     axisLabelRotationSlider->setMinimum(0);
     axisLabelRotationSlider->setValue(30);
     axisLabelRotationSlider->setMaximum(90);

     auto *modeGroup = new QButtonGroup(m_barsWidget);
     auto *modeWeather = new QRadioButton(u"Temperature Data"_s, m_barsWidget);
     modeWeather->setChecked(true);
     auto *modeCustomProxy = new QRadioButton(u"Custom Proxy Data"_s, m_barsWidget);
     modeGroup->addButton(modeWeather);
     modeGroup->addButton(modeCustomProxy);

     vLayout->addWidget(new QLabel(u"Rotate horizontally"_s));
     vLayout->addWidget(rotationSliderX, 0, Qt::AlignTop);
     vLayout->addWidget(new QLabel(u"Rotate vertically"_s));
     vLayout->addWidget(rotationSliderY, 0, Qt::AlignTop);
     vLayout->addWidget(labelButton, 0, Qt::AlignTop);
     vLayout->addWidget(cameraButton, 0, Qt::AlignTop);
     vLayout->addWidget(zoomToSelectedButton, 0, Qt::AlignTop);
     vLayout->addWidget(backgroundCheckBox);
     vLayout->addWidget(gridCheckBox);
     vLayout->addWidget(smoothCheckBox);
     vLayout->addWidget(seriesCheckBox);
     vLayout->addWidget(reverseValueAxisCheckBox);
     vLayout->addWidget(axisTitlesVisibleCB);
     vLayout->addWidget(axisTitlesFixedCB);
     vLayout->addWidget(new QLabel(u"Show year"_s));
     vLayout->addWidget(rangeList);
     vLayout->addWidget(new QLabel(u"Change bar style"_s));
     vLayout->addWidget(barStyleList);
     vLayout->addWidget(new QLabel(u"Change selection mode"_s));
     vLayout->addWidget(selectionModeList);
     vLayout->addWidget(new QLabel(u"Change theme"_s));
     vLayout->addWidget(themeList);
     vLayout->addWidget(new QLabel(u"Adjust shadow quality"_s));
     vLayout->addWidget(shadowQuality);
     vLayout->addWidget(new QLabel(u"Change font"_s));
     vLayout->addWidget(fontList);
     vLayout->addWidget(new QLabel(u"Adjust font size"_s));
     vLayout->addWidget(fontSizeSlider);
     vLayout->addWidget(new QLabel(u"Axis label rotation"_s));
     vLayout->addWidget(axisLabelRotationSlider, 0, Qt::AlignTop);
     vLayout->addWidget(modeWeather, 0, Qt::AlignTop);
     vLayout->addWidget(modeCustomProxy, 1, Qt::AlignTop);

     // Raise the graph to the top of the widget stack, to hide UI if resized smaller
     m_barsGraph->raise();

     m_modifier = new GraphModifier(m_barsGraph, this);

     QObject::connect(rotationSliderX, &QSlider::valueChanged, m_modifier, &GraphModifier::rotateX);
     QObject::connect(rotationSliderY, &QSlider::valueChanged, m_modifier, &GraphModifier::rotateY);

     QObject::connect(labelButton,
                      &QPushButton::clicked,
                      m_modifier,
                      &GraphModifier::changeLabelBackground);
     QObject::connect(cameraButton,
                      &QPushButton::clicked,
                      m_modifier,
                      &GraphModifier::changePresetCamera);
     QObject::connect(zoomToSelectedButton,
                      &QPushButton::clicked,
                      m_modifier,
                      &GraphModifier::zoomToSelectedBar);

     QObject::connect(backgroundCheckBox,
                      &QCheckBox::stateChanged,
                      m_modifier,
                      &GraphModifier::setBackgroundEnabled);
     QObject::connect(gridCheckBox,
                      &QCheckBox::stateChanged,
                      m_modifier,
                      &GraphModifier::setGridEnabled);
     QObject::connect(smoothCheckBox,
                      &QCheckBox::stateChanged,
                      m_modifier,
                      &GraphModifier::setSmoothBars);
     QObject::connect(seriesCheckBox,
                      &QCheckBox::stateChanged,
                      m_modifier,
                      &GraphModifier::setSeriesVisibility);
     QObject::connect(reverseValueAxisCheckBox,
                      &QCheckBox::stateChanged,
                      m_modifier,
                      &GraphModifier::setReverseValueAxis);

     QObject::connect(m_modifier,
                      &GraphModifier::backgroundEnabledChanged,
                      backgroundCheckBox,
                      &QCheckBox::setChecked);
     QObject::connect(m_modifier,
                      &GraphModifier::gridEnabledChanged,
                      gridCheckBox,
                      &QCheckBox::setChecked);

     QObject::connect(rangeList,
                      &QComboBox::currentIndexChanged,
                      m_modifier,
                      &GraphModifier::changeRange);

     QObject::connect(barStyleList,
                      &QComboBox::currentIndexChanged,
                      m_modifier,
                      &GraphModifier::changeStyle);

     QObject::connect(selectionModeList,
                      &QComboBox::currentIndexChanged,
                      m_modifier,
                      &GraphModifier::changeSelectionMode);

     QObject::connect(themeList,
                      &QComboBox::currentIndexChanged,
                      m_modifier,
                      &GraphModifier::changeTheme);

     QObject::connect(shadowQuality,
                      &QComboBox::currentIndexChanged,
                      m_modifier,
                      &GraphModifier::changeShadowQuality);

     QObject::connect(m_modifier,
                      &GraphModifier::shadowQualityChanged,
                      shadowQuality,
                      &QComboBox::setCurrentIndex);
     QObject::connect(m_barsGraph,
                      &Q3DBars::shadowQualityChanged,
                      m_modifier,
                      &GraphModifier::shadowQualityUpdatedByVisual);

     QObject::connect(fontSizeSlider,
                      &QSlider::valueChanged,
                      m_modifier,
                      &GraphModifier::changeFontSize);
     QObject::connect(fontList,
                      &QFontComboBox::currentFontChanged,
                      m_modifier,
                      &GraphModifier::changeFont);

     QObject::connect(m_modifier,
                      &GraphModifier::fontSizeChanged,
                      fontSizeSlider,
                      &QSlider::setValue);
     QObject::connect(m_modifier,
                      &GraphModifier::fontChanged,
                      fontList,
                      &QFontComboBox::setCurrentFont);

     QObject::connect(axisTitlesVisibleCB,
                      &QCheckBox::stateChanged,
                      m_modifier,
                      &GraphModifier::setAxisTitleVisibility);
     QObject::connect(axisTitlesFixedCB,
                      &QCheckBox::stateChanged,
                      m_modifier,
                      &GraphModifier::setAxisTitleFixed);
     QObject::connect(axisLabelRotationSlider,
                      &QSlider::valueChanged,
                      m_modifier,
                      &GraphModifier::changeLabelRotation);

     QObject::connect(modeWeather,
                      &QRadioButton::toggled,
                      m_modifier,
                      &GraphModifier::setDataModeToWeather);
     QObject::connect(modeCustomProxy,
                      &QRadioButton::toggled,
                      m_modifier,
                      &GraphModifier::setDataModeToCustom);
     QObject::connect(modeWeather, &QRadioButton::toggled, seriesCheckBox, &QCheckBox::setEnabled);
     QObject::connect(modeWeather, &QRadioButton::toggled, rangeList, &QComboBox::setEnabled);
     QObject::connect(modeWeather,
                      &QRadioButton::toggled,
                      axisTitlesVisibleCB,
                      &QCheckBox::setEnabled);
     QObject::connect(modeWeather, &QRadioButton::toggled, axisTitlesFixedCB, &QCheckBox::setEnabled);
     QObject::connect(modeWeather,
                      &QRadioButton::toggled,
                      axisLabelRotationSlider,
                      &QSlider::setEnabled);
 }