main.cpp Example File

rotations/main.cpp
 /****************************************************************************
 **
 ** 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 "scatterdatamodifier.h"

 #include <QtWidgets/QApplication>
 #include <QtWidgets/QWidget>
 #include <QtWidgets/QHBoxLayout>
 #include <QtWidgets/QVBoxLayout>
 #include <QtWidgets/QPushButton>
 #include <QtWidgets/QSlider>
 #include <QtWidgets/QLabel>
 #include <QtWidgets/QMessageBox>
 #include <QtGui/QScreen>

 int main(int argc, char **argv)
 {
     QApplication app(argc, argv);
     Q3DScatter *graph = new Q3DScatter();
     QWidget *container = QWidget::createWindowContainer(graph);

     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() / 1.5));
     container->setMaximumSize(screenSize);
     container->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Expanding);
     container->setFocusPolicy(Qt::StrongFocus);

     QWidget *widget = new QWidget;
     QHBoxLayout *hLayout = new QHBoxLayout(widget);
     QVBoxLayout *vLayout = new QVBoxLayout();
     hLayout->addWidget(container, 1);
     hLayout->addLayout(vLayout);

     widget->setWindowTitle(QStringLiteral("Item rotations example - Magnetic field of the sun"));

     QPushButton *toggleRotationButton = new QPushButton(widget);
     toggleRotationButton->setText(QStringLiteral("Toggle animation"));
     QPushButton *toggleSunButton = new QPushButton(widget);
     toggleSunButton->setText(QStringLiteral("Toggle Sun"));

     QSlider *fieldLinesSlider = new QSlider(Qt::Horizontal, widget);
     fieldLinesSlider->setTickInterval(1);
     fieldLinesSlider->setMinimum(1);
     fieldLinesSlider->setValue(12);
     fieldLinesSlider->setMaximum(128);

     QSlider *arrowsSlider = new QSlider(Qt::Horizontal, widget);
     arrowsSlider->setTickInterval(1);
     arrowsSlider->setMinimum(8);
     arrowsSlider->setValue(16);
     arrowsSlider->setMaximum(32);

     vLayout->addWidget(toggleRotationButton);
     vLayout->addWidget(toggleSunButton);
     vLayout->addWidget(new QLabel(QStringLiteral("Field Lines (1 - 128):")));
     vLayout->addWidget(fieldLinesSlider);
     vLayout->addWidget(new QLabel(QStringLiteral("Arrows per line (8 - 32):")));
     vLayout->addWidget(arrowsSlider, 1, Qt::AlignTop);

     ScatterDataModifier *modifier = new ScatterDataModifier(graph);

     QObject::connect(toggleRotationButton, &QPushButton::clicked, modifier,
                      &ScatterDataModifier::toggleRotation);
     QObject::connect(toggleSunButton, &QPushButton::clicked, modifier,
                      &ScatterDataModifier::toggleSun);
     QObject::connect(fieldLinesSlider, &QSlider::valueChanged, modifier,
                      &ScatterDataModifier::setFieldLines);
     QObject::connect(arrowsSlider, &QSlider::valueChanged, modifier,
                      &ScatterDataModifier::setArrowsPerLine);

     widget->show();
     return app.exec();
 }