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-/****************************************************************************
-**
-** Copyright (C) 2016 The Qt Company Ltd.
-** Contact: https://www.qt.io/licensing/
-**
-** This file is part of the Qt Data Visualization module of the Qt Toolkit.
-**
-** $QT_BEGIN_LICENSE:GPL$
-** Commercial License Usage
-** Licensees holding valid commercial Qt licenses may use this file in
-** accordance with the commercial license agreement provided with the
-** Software or, alternatively, in accordance with the terms contained in
-** a written agreement between you and The Qt Company. For licensing terms
-** and conditions see https://www.qt.io/terms-conditions. For further
-** information use the contact form at https://www.qt.io/contact-us.
-**
-** GNU General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU
-** General Public License version 3 or (at your option) any later version
-** approved by the KDE Free Qt Foundation. The licenses are as published by
-** the Free Software Foundation and appearing in the file LICENSE.GPL3
-** included in the packaging of this file. Please review the following
-** information to ensure the GNU General Public License requirements will
-** be met: https://www.gnu.org/licenses/gpl-3.0.html.
-**
-** $QT_END_LICENSE$
-**
-****************************************************************************/
-
-#include <QtDataVisualization/q3dbars.h>
-#include <QtDataVisualization/qcategory3daxis.h>
-#include <QtDataVisualization/qitemmodelbardataproxy.h>
-#include <QtDataVisualization/qvalue3daxis.h>
-#include <QtDataVisualization/q3dscene.h>
-#include <QtDataVisualization/q3dcamera.h>
-#include <QtDataVisualization/qbar3dseries.h>
-#include <QtDataVisualization/q3dtheme.h>
-
-#include <QtWidgets/QApplication>
-#include <QtWidgets/QVBoxLayout>
-#include <QtWidgets/QTableWidget>
-#include <QtGui/QScreen>
-#include <QtCore/QRandomGenerator>
-#include <QtCore/QTimer>
-#include <QtGui/QFont>
-#include <QtCore/QDebug>
-#include <QtWidgets/QHeaderView>
-#include <QtWidgets/QMessageBox>
-
-#define USE_STATIC_DATA
-
-class GraphDataGenerator : public QObject
-{
-public:
- explicit GraphDataGenerator(Q3DBars *bargraph, QTableWidget *tableWidget);
- ~GraphDataGenerator();
-
- void setupModel();
- void addRow();
- void changeStyle();
- void changePresetCamera();
- void changeTheme();
- void start();
- void selectFromTable(const QPoint &selection);
- void selectedFromTable(int currentRow, int currentColumn, int previousRow, int previousColumn);
- void fixTableSize();
-
-private:
- Q3DBars *m_graph;
- QTimer *m_dataTimer;
- int m_columnCount;
- int m_rowCount;
- QTableWidget *m_tableWidget; // not owned
-};
-
-GraphDataGenerator::GraphDataGenerator(Q3DBars *bargraph, QTableWidget *tableWidget)
- : m_graph(bargraph),
- m_dataTimer(0),
- m_columnCount(100),
- m_rowCount(50),
- m_tableWidget(tableWidget)
-{
- //! [5]
- // Set up bar specifications; make the bars as wide as they are deep,
- // and add a small space between them
- m_graph->setBarThickness(1.0f);
- m_graph->setBarSpacing(QSizeF(0.2, 0.2));
-
- //! [5]
-#ifndef USE_STATIC_DATA
- // Set up sample space; make it as deep as it's wide
- m_graph->rowAxis()->setRange(0, m_rowCount);
- m_graph->columnAxis()->setRange(0, m_columnCount);
- m_tableWidget->setColumnCount(m_columnCount);
-
- // Set selection mode to full
- m_graph->setSelectionMode(QAbstract3DGraph::SelectionItemRowAndColumn);
-
- // Hide axis labels by explicitly setting one empty string as label list
- m_graph->rowAxis()->setLabels(QStringList(QString()));
- m_graph->columnAxis()->setLabels(QStringList(QString()));
-
- m_graph->seriesList().at(0)->setItemLabelFormat(QStringLiteral("@valueLabel"));
-#else
- //! [6]
- // Set selection mode to slice row
- m_graph->setSelectionMode(QAbstract3DGraph::SelectionItemAndRow | QAbstract3DGraph::SelectionSlice);
-
- //! [6]
-#endif
-
- //! [7]
- // Set theme
- m_graph->activeTheme()->setType(Q3DTheme::ThemeDigia);
-
- // Set font
- QFont font = QFont("Impact", 20);
- font.setStyleHint(QFont::SansSerif);
- m_graph->activeTheme()->setFont(font);
-
- // Set preset camera position
- m_graph->scene()->activeCamera()->setCameraPreset(Q3DCamera::CameraPresetFront);
- //! [7]
-}
-
-GraphDataGenerator::~GraphDataGenerator()
-{
- if (m_dataTimer) {
- m_dataTimer->stop();
- delete m_dataTimer;
- }
- delete m_graph;
-}
-
-void GraphDataGenerator::start()
-{
-#ifndef USE_STATIC_DATA
- m_dataTimer = new QTimer();
- m_dataTimer->setTimerType(Qt::CoarseTimer);
- QObject::connect(m_dataTimer, &QTimer::timeout, this, &GraphDataGenerator::addRow);
- m_dataTimer->start(0);
- m_tableWidget->setFixedWidth(m_graph->width());
-#else
- //! [8]
- setupModel();
-
- // Table needs to be shown before the size of its headers can be accurately obtained,
- // so we postpone it a bit
- m_dataTimer = new QTimer();
- m_dataTimer->setSingleShot(true);
- QObject::connect(m_dataTimer, &QTimer::timeout, this, &GraphDataGenerator::fixTableSize);
- m_dataTimer->start(0);
- //! [8]
-#endif
-}
-
-void GraphDataGenerator::setupModel()
-{
- //! [9]
- // Set up row and column names
- QStringList days;
- days << "Monday" << "Tuesday" << "Wednesday" << "Thursday" << "Friday" << "Saturday" << "Sunday";
- QStringList weeks;
- weeks << "week 1" << "week 2" << "week 3" << "week 4" << "week 5";
-
- // Set up data Mon Tue Wed Thu Fri Sat Sun
- float hours[5][7] = {{2.0f, 1.0f, 3.0f, 0.2f, 1.0f, 5.0f, 10.0f}, // week 1
- {0.5f, 1.0f, 3.0f, 1.0f, 2.0f, 2.0f, 3.0f}, // week 2
- {1.0f, 1.0f, 2.0f, 1.0f, 4.0f, 4.0f, 4.0f}, // week 3
- {0.0f, 1.0f, 0.0f, 0.0f, 2.0f, 2.0f, 0.3f}, // week 4
- {3.0f, 3.0f, 6.0f, 2.0f, 2.0f, 1.0f, 1.0f}}; // week 5
- //! [9]
-
- // Add labels
- //! [10]
- m_graph->rowAxis()->setTitle("Week of year");
- m_graph->rowAxis()->setTitleVisible(true);
- m_graph->columnAxis()->setTitle("Day of week");
- m_graph->columnAxis()->setTitleVisible(true);
- m_graph->valueAxis()->setTitle("Hours spent on the Internet");
- m_graph->valueAxis()->setTitleVisible(true);
- m_graph->valueAxis()->setLabelFormat("%.1f h");
- //! [10]
-
- //! [11]
- m_tableWidget->setRowCount(5);
- m_tableWidget->setColumnCount(7);
- m_tableWidget->setHorizontalHeaderLabels(days);
- m_tableWidget->setVerticalHeaderLabels(weeks);
- m_tableWidget->setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
- m_tableWidget->setVerticalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
- m_tableWidget->setCurrentCell(-1, -1);
- m_tableWidget->setSelectionMode(QAbstractItemView::SingleSelection);
- //! [11]
-
- //! [12]
- for (int week = 0; week < weeks.size(); week++) {
- for (int day = 0; day < days.size(); day++) {
- QModelIndex index = m_tableWidget->model()->index(week, day);
- m_tableWidget->model()->setData(index, hours[week][day]);
- }
- }
- //! [12]
-}
-
-void GraphDataGenerator::addRow()
-{
- m_tableWidget->model()->insertRow(0);
- if (m_tableWidget->model()->rowCount() > m_rowCount)
- m_tableWidget->model()->removeRow(m_rowCount);
- for (int i = 0; i < m_columnCount; i++) {
- QModelIndex index = m_tableWidget->model()->index(0, i);
- m_tableWidget->model()->setData(index,
- ((float)i / (float)m_columnCount) / 2.0f +
- (float)(QRandomGenerator::global()->bounded(30)) / 100.0f);
- }
- m_tableWidget->resizeColumnsToContents();
-}
-
-//! [13]
-void GraphDataGenerator::selectFromTable(const QPoint &selection)
-{
- m_tableWidget->setFocus();
- m_tableWidget->setCurrentCell(selection.x(), selection.y());
-}
-//! [13]
-
-//! [14]
-void GraphDataGenerator::selectedFromTable(int currentRow, int currentColumn,
- int previousRow, int previousColumn)
-{
- Q_UNUSED(previousRow);
- Q_UNUSED(previousColumn);
- m_graph->seriesList().at(0)->setSelectedBar(QPoint(currentRow, currentColumn));
-}
-//! [14]
-
-void GraphDataGenerator::fixTableSize()
-{
- int width = m_tableWidget->horizontalHeader()->length();
- width += m_tableWidget->verticalHeader()->width();
- m_tableWidget->setFixedWidth(width + 2);
- int height = m_tableWidget->verticalHeader()->length();
- height += m_tableWidget->horizontalHeader()->height();
- m_tableWidget->setFixedHeight(height + 2);
-}
-
-int main(int argc, char **argv)
-{
- qputenv("QSG_RHI_BACKEND", "opengl");
- //! [0]
- QApplication app(argc, argv);
- Q3DBars *graph = new Q3DBars();
- QWidget *container = QWidget::createWindowContainer(graph);
- //! [0]
-
- if (!graph->hasContext()) {
- QMessageBox msgBox;
- msgBox.setText("Couldn't initialize the OpenGL context.");
- msgBox.exec();
- return -1;
- }
-
- QSize screenSize = graph->screen()->size();
- container->setMinimumSize(QSize(screenSize.width() / 2, screenSize.height() / 2));
- container->setMaximumSize(screenSize);
- container->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Expanding);
- container->setFocusPolicy(Qt::StrongFocus);
-
- //! [1]
- QWidget widget;
- QVBoxLayout *layout = new QVBoxLayout(&widget);
- QTableWidget *tableWidget = new QTableWidget(&widget);
- layout->addWidget(container, 1);
- layout->addWidget(tableWidget, 1, Qt::AlignHCenter);
- //! [1]
-
- tableWidget->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Fixed);
- tableWidget->setAlternatingRowColors(true);
- widget.setWindowTitle(QStringLiteral("Hours spent on the Internet"));
-
- //! [2]
- // Since we are dealing with QTableWidget, the model will already have data sorted properly
- // into rows and columns, so we simply set useModelCategories property to true to utilize this.
- QItemModelBarDataProxy *proxy = new QItemModelBarDataProxy(tableWidget->model());
- proxy->setUseModelCategories(true);
- QBar3DSeries *series = new QBar3DSeries(proxy);
- series->setMesh(QAbstract3DSeries::MeshPyramid);
- graph->addSeries(series);
- //! [2]
-
- //! [3]
- GraphDataGenerator generator(graph, tableWidget);
- QObject::connect(series, &QBar3DSeries::selectedBarChanged, &generator,
- &GraphDataGenerator::selectFromTable);
- QObject::connect(tableWidget, &QTableWidget::currentCellChanged, &generator,
- &GraphDataGenerator::selectedFromTable);
- //! [3]
-
- //! [4]
- widget.show();
- generator.start();
- return app.exec();
- //! [4]
-}
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