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Diffstat (limited to 'examples/datavisualization/graphgallery/graphmodifier.cpp')
| -rw-r--r-- | examples/datavisualization/graphgallery/graphmodifier.cpp | 441 |
1 files changed, 441 insertions, 0 deletions
diff --git a/examples/datavisualization/graphgallery/graphmodifier.cpp b/examples/datavisualization/graphgallery/graphmodifier.cpp new file mode 100644 index 00000000..b0cb6f48 --- /dev/null +++ b/examples/datavisualization/graphgallery/graphmodifier.cpp @@ -0,0 +1,441 @@ +// Copyright (C) 2023 The Qt Company Ltd. +// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause + +#include "graphmodifier.h" +#include "rainfalldata.h" + +#include <QtDataVisualization/qcategory3daxis.h> +#include <QtDataVisualization/qvalue3daxis.h> +#include <QtDataVisualization/qbardataproxy.h> +#include <QtDataVisualization/q3dscene.h> +#include <QtDataVisualization/q3dcamera.h> +#include <QtDataVisualization/qbar3dseries.h> +#include <QtDataVisualization/q3dtheme.h> +#include <QtCore/qmath.h> +#include <QtWidgets/qcombobox.h> + +using namespace Qt::StringLiterals; + +// TODO: Many of the values do not affect custom proxy series now - should be fixed + +//! [0] +GraphModifier::GraphModifier(Q3DBars *bargraph, QObject *parent) : + QObject(parent), + m_graph(bargraph), + //! [0] + //! [1] + 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) + //! [1] +{ + //! [2] + m_graph->setShadowQuality(QAbstract3DGraph::ShadowQualitySoftMedium); + m_graph->activeTheme()->setBackgroundEnabled(false); + m_graph->activeTheme()->setFont(QFont("Times New Roman", m_fontSize)); + m_graph->activeTheme()->setLabelBackgroundEnabled(true); + m_graph->setMultiSeriesUniform(true); + //! [2] + + m_months = {"January", "February", "March", "April", "May", "June" , "July", + "August", "September", "October" , "November", "December"}; + m_years = {"2015", "2016", "2017", "2018", "2019", "2020", "2021", "2022"}; + + //! [3] + 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->setLabelAutoRotation(30.0f); + m_temperatureAxis->setTitleVisible(true); + + m_yearAxis->setTitle("Year"); + m_yearAxis->setLabelAutoRotation(30.0f); + m_yearAxis->setTitleVisible(true); + m_monthAxis->setTitle("Month"); + m_monthAxis->setLabelAutoRotation(30.0f); + m_monthAxis->setTitleVisible(true); + + m_graph->setValueAxis(m_temperatureAxis); + m_graph->setRowAxis(m_yearAxis); + m_graph->setColumnAxis(m_monthAxis); + //! [3] + + //! [4] + m_primarySeries->setItemLabelFormat(u"Oulu - @colLabel @rowLabel: @valueLabel"_s); + m_primarySeries->setMesh(QAbstract3DSeries::MeshBevelBar); + m_primarySeries->setMeshSmooth(false); + + m_secondarySeries->setItemLabelFormat(u"Helsinki - @colLabel @rowLabel: @valueLabel"_s); + m_secondarySeries->setMesh(QAbstract3DSeries::MeshBevelBar); + m_secondarySeries->setMeshSmooth(false); + m_secondarySeries->setVisible(false); + //! [4] + + //! [5] + m_graph->addSeries(m_primarySeries); + m_graph->addSeries(m_secondarySeries); + //! [5] + + //! [6] + changePresetCamera(); + //! [6] + + //! [8] + resetTemperatureData(); + //! [8] + + // Set up property animations for zooming to the selected bar + //! [11] + Q3DCamera *camera = m_graph->scene()->activeCamera(); + m_defaultAngleX = camera->xRotation(); + m_defaultAngleY = camera->yRotation(); + m_defaultZoom = camera->zoomLevel(); + m_defaultTarget = camera->target(); + + m_animationCameraX.setTargetObject(camera); + m_animationCameraY.setTargetObject(camera); + m_animationCameraZoom.setTargetObject(camera); + m_animationCameraTarget.setTargetObject(camera); + + m_animationCameraX.setPropertyName("xRotation"); + m_animationCameraY.setPropertyName("yRotation"); + m_animationCameraZoom.setPropertyName("zoomLevel"); + m_animationCameraTarget.setPropertyName("target"); + + int duration = 1700; + m_animationCameraX.setDuration(duration); + m_animationCameraY.setDuration(duration); + m_animationCameraZoom.setDuration(duration); + m_animationCameraTarget.setDuration(duration); + + // The zoom always first zooms out above the graph and then zooms in + qreal zoomOutFraction = 0.3; + m_animationCameraX.setKeyValueAt(zoomOutFraction, QVariant::fromValue(0.0f)); + m_animationCameraY.setKeyValueAt(zoomOutFraction, QVariant::fromValue(90.0f)); + m_animationCameraZoom.setKeyValueAt(zoomOutFraction, QVariant::fromValue(50.0f)); + m_animationCameraTarget.setKeyValueAt(zoomOutFraction, + QVariant::fromValue(QVector3D(0.0f, 0.0f, 0.0f))); + //! [11] + + m_customData = new RainfallData(); +} + +GraphModifier::~GraphModifier() +{ + delete m_customData; +} + +void GraphModifier::resetTemperatureData() +{ + //! [9a] + // Set up data + 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 + //! [9a] + {-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 + }; + + // Create data arrays + //! [9b] + auto *dataSet = new QBarDataArray; + auto *dataSet2 = new QBarDataArray; + + dataSet->reserve(m_years.size()); + for (qsizetype year = 0; year < m_years.size(); ++year) { + // Create a data row + auto *dataRow = new QBarDataRow(m_months.size()); + auto *dataRow2 = new QBarDataRow(m_months.size()); + for (qsizetype month = 0; month < m_months.size(); ++month) { + // Add data to the row + (*dataRow)[month].setValue(tempOulu[year][month]); + (*dataRow2)[month].setValue(tempHelsinki[year][month]); + } + // Add the row to the set + dataSet->append(dataRow); + dataSet2->append(dataRow2); + } + + // Add data to the data proxy (the data proxy assumes ownership of it) + m_primarySeries->dataProxy()->resetArray(dataSet, m_years, m_months); + m_secondarySeries->dataProxy()->resetArray(dataSet2, m_years, m_months); + //! [9b] +} + +void GraphModifier::changeRange(int range) +{ + if (range >= m_years.count()) + m_yearAxis->setRange(0, m_years.count() - 1); + else + m_yearAxis->setRange(range, range); +} + +void GraphModifier::changeStyle(int style) +{ + auto *comboBox = qobject_cast<QComboBox *>(sender()); + if (comboBox) { + m_barMesh = comboBox->itemData(style).value<QAbstract3DSeries::Mesh>(); + m_primarySeries->setMesh(m_barMesh); + m_secondarySeries->setMesh(m_barMesh); + m_customData->customSeries()->setMesh(m_barMesh); + } +} + +void GraphModifier::changePresetCamera() +{ + m_animationCameraX.stop(); + m_animationCameraY.stop(); + m_animationCameraZoom.stop(); + m_animationCameraTarget.stop(); + + // Restore camera target in case animation has changed it + m_graph->scene()->activeCamera()->setTarget(QVector3D(0.0f, 0.0f, 0.0f)); + + //! [7] + static int preset = Q3DCamera::CameraPresetFront; + + m_graph->scene()->activeCamera()->setCameraPreset((Q3DCamera::CameraPreset)preset); + + if (++preset > Q3DCamera::CameraPresetDirectlyBelow) + preset = Q3DCamera::CameraPresetFrontLow; + //! [7] +} + +void GraphModifier::changeTheme(int theme) +{ + Q3DTheme *currentTheme = m_graph->activeTheme(); + currentTheme->setType(Q3DTheme::Theme(theme)); + emit backgroundEnabledChanged(currentTheme->isBackgroundEnabled()); + emit gridEnabledChanged(currentTheme->isGridEnabled()); + emit fontChanged(currentTheme->font()); + emit fontSizeChanged(currentTheme->font().pointSize()); +} + +void GraphModifier::changeLabelBackground() +{ + m_graph->activeTheme()->setLabelBackgroundEnabled(!m_graph->activeTheme()->isLabelBackgroundEnabled()); +} + +void GraphModifier::changeSelectionMode(int selectionMode) +{ + auto *comboBox = qobject_cast<QComboBox *>(sender()); + if (comboBox) { + int flags = comboBox->itemData(selectionMode).toInt(); + m_graph->setSelectionMode(QAbstract3DGraph::SelectionFlags(flags)); + } +} + +void GraphModifier::changeFont(const QFont &font) +{ + QFont newFont = font; + m_graph->activeTheme()->setFont(newFont); +} + +void GraphModifier::changeFontSize(int fontsize) +{ + m_fontSize = fontsize; + QFont font = m_graph->activeTheme()->font(); + font.setPointSize(m_fontSize); + m_graph->activeTheme()->setFont(font); +} + +void GraphModifier::shadowQualityUpdatedByVisual(QAbstract3DGraph::ShadowQuality sq) +{ + int quality = int(sq); + // Updates the UI component to show correct shadow quality + emit shadowQualityChanged(quality); +} + +void GraphModifier::changeLabelRotation(int rotation) +{ + m_temperatureAxis->setLabelAutoRotation(float(rotation)); + m_monthAxis->setLabelAutoRotation(float(rotation)); + m_yearAxis->setLabelAutoRotation(float(rotation)); +} + +void GraphModifier::setAxisTitleVisibility(bool enabled) +{ + m_temperatureAxis->setTitleVisible(enabled); + m_monthAxis->setTitleVisible(enabled); + m_yearAxis->setTitleVisible(enabled); +} + +void GraphModifier::setAxisTitleFixed(bool enabled) +{ + m_temperatureAxis->setTitleFixed(enabled); + m_monthAxis->setTitleFixed(enabled); + m_yearAxis->setTitleFixed(enabled); +} + +void GraphModifier::zoomToSelectedBar() +{ + m_animationCameraX.stop(); + m_animationCameraY.stop(); + m_animationCameraZoom.stop(); + m_animationCameraTarget.stop(); + + Q3DCamera *camera = m_graph->scene()->activeCamera(); + float currentX = camera->xRotation(); + float currentY = camera->yRotation(); + float currentZoom = camera->zoomLevel(); + QVector3D currentTarget = camera->target(); + + m_animationCameraX.setStartValue(QVariant::fromValue(currentX)); + m_animationCameraY.setStartValue(QVariant::fromValue(currentY)); + m_animationCameraZoom.setStartValue(QVariant::fromValue(currentZoom)); + m_animationCameraTarget.setStartValue(QVariant::fromValue(currentTarget)); + + QPoint selectedBar = m_graph->selectedSeries() + ? m_graph->selectedSeries()->selectedBar() + : QBar3DSeries::invalidSelectionPosition(); + + if (selectedBar != QBar3DSeries::invalidSelectionPosition()) { + // Normalize selected bar position within axis range to determine target coordinates + //! [12] + QVector3D endTarget; + float xMin = m_graph->columnAxis()->min(); + float xRange = m_graph->columnAxis()->max() - xMin; + float zMin = m_graph->rowAxis()->min(); + float zRange = m_graph->rowAxis()->max() - zMin; + endTarget.setX((selectedBar.y() - xMin) / xRange * 2.0f - 1.0f); + endTarget.setZ((selectedBar.x() - zMin) / zRange * 2.0f - 1.0f); + //! [12] + + // Rotate the camera so that it always points approximately to the graph center + //! [14] + qreal endAngleX = 90.0 - qRadiansToDegrees(qAtan(qreal(endTarget.z() / endTarget.x()))); + if (endTarget.x() > 0.0f) + endAngleX -= 180.0f; + float barValue = m_graph->selectedSeries()->dataProxy()->itemAt(selectedBar.x(), + selectedBar.y())->value(); + float endAngleY = barValue >= 0.0f ? 30.0f : -30.0f; + if (m_graph->valueAxis()->reversed()) + endAngleY *= -1.0f; + //! [14] + + m_animationCameraX.setEndValue(QVariant::fromValue(float(endAngleX))); + m_animationCameraY.setEndValue(QVariant::fromValue(endAngleY)); + m_animationCameraZoom.setEndValue(QVariant::fromValue(250)); + //! [13] + m_animationCameraTarget.setEndValue(QVariant::fromValue(endTarget)); + //! [13] + } else { + // No selected bar, so return to the default view + m_animationCameraX.setEndValue(QVariant::fromValue(m_defaultAngleX)); + m_animationCameraY.setEndValue(QVariant::fromValue(m_defaultAngleY)); + m_animationCameraZoom.setEndValue(QVariant::fromValue(m_defaultZoom)); + m_animationCameraTarget.setEndValue(QVariant::fromValue(m_defaultTarget)); + } + + m_animationCameraX.start(); + m_animationCameraY.start(); + m_animationCameraZoom.start(); + m_animationCameraTarget.start(); +} + +void GraphModifier::setDataModeToWeather(bool enabled) +{ + if (enabled) + changeDataMode(false); +} + +void GraphModifier::setDataModeToCustom(bool enabled) +{ + if (enabled) + changeDataMode(true); +} + +void GraphModifier::changeShadowQuality(int quality) +{ + QAbstract3DGraph::ShadowQuality sq = QAbstract3DGraph::ShadowQuality(quality); + m_graph->setShadowQuality(sq); + emit shadowQualityChanged(quality); +} + +//! [10] +void GraphModifier::rotateX(int rotation) +{ + m_xRotation = rotation; + m_graph->scene()->activeCamera()->setCameraPosition(m_xRotation, m_yRotation); +} +//! [10] + +void GraphModifier::rotateY(int rotation) +{ + m_yRotation = rotation; + m_graph->scene()->activeCamera()->setCameraPosition(m_xRotation, m_yRotation); +} + +void GraphModifier::setBackgroundEnabled(int enabled) +{ + m_graph->activeTheme()->setBackgroundEnabled(bool(enabled)); +} + +void GraphModifier::setGridEnabled(int enabled) +{ + m_graph->activeTheme()->setGridEnabled(bool(enabled)); +} + +void GraphModifier::setSmoothBars(int smooth) +{ + m_smooth = bool(smooth); + m_primarySeries->setMeshSmooth(m_smooth); + m_secondarySeries->setMeshSmooth(m_smooth); + m_customData->customSeries()->setMeshSmooth(m_smooth); +} + +void GraphModifier::setSeriesVisibility(int enabled) +{ + m_secondarySeries->setVisible(bool(enabled)); +} + +void GraphModifier::setReverseValueAxis(int enabled) +{ + m_graph->valueAxis()->setReversed(enabled); +} + +void GraphModifier::setReflection(bool enabled) +{ + m_graph->setReflection(enabled); +} + +void GraphModifier::changeDataMode(bool customData) +{ + // Change between weather data and data from custom proxy + if (customData) { + m_graph->removeSeries(m_primarySeries); + m_graph->removeSeries(m_secondarySeries); + m_graph->addSeries(m_customData->customSeries()); + m_graph->setValueAxis(m_customData->valueAxis()); + m_graph->setRowAxis(m_customData->rowAxis()); + m_graph->setColumnAxis(m_customData->colAxis()); + } else { + m_graph->removeSeries(m_customData->customSeries()); + m_graph->addSeries(m_primarySeries); + m_graph->addSeries(m_secondarySeries); + m_graph->setValueAxis(m_temperatureAxis); + m_graph->setRowAxis(m_yearAxis); + m_graph->setColumnAxis(m_monthAxis); + } +} |