main.cpp Example File

custominput/main.cpp
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 #include "scatterdatamodifier.h"

 #include <QtWidgets/QApplication>
 #include <QtWidgets/QWidget>
 #include <QtWidgets/QHBoxLayout>
 #include <QtWidgets/QVBoxLayout>
 #include <QtWidgets/QPushButton>
 #include <QtWidgets/QCheckBox>
 #include <QtWidgets/QComboBox>
 #include <QtWidgets/QLabel>
 #include <QtWidgets/QMessageBox>
 #include <QtGui/QScreen>
 #include <QtGui/QFontDatabase>

 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("Custom Input Handling"));

     QPushButton *cameraButton = new QPushButton(widget);
     cameraButton->setText(QStringLiteral("Toggle Camera Animation"));

     QComboBox *shadowQuality = new QComboBox(widget);
     shadowQuality->addItem(QStringLiteral("None"));
     shadowQuality->addItem(QStringLiteral("Low"));
     shadowQuality->addItem(QStringLiteral("Medium"));
     shadowQuality->addItem(QStringLiteral("High"));
     shadowQuality->addItem(QStringLiteral("Low Soft"));
     shadowQuality->addItem(QStringLiteral("Medium Soft"));
     shadowQuality->addItem(QStringLiteral("High Soft"));
     shadowQuality->setCurrentIndex(2);

     vLayout->addWidget(cameraButton, 0, Qt::AlignTop);
     vLayout->addWidget(new QLabel(QStringLiteral("Adjust shadow quality")), 0, Qt::AlignTop);
     vLayout->addWidget(shadowQuality, 1, Qt::AlignTop);

     ScatterDataModifier *modifier = new ScatterDataModifier(graph);

     QObject::connect(cameraButton, &QPushButton::clicked, modifier,
                      &ScatterDataModifier::toggleCameraAnimation);

     QObject::connect(shadowQuality, SIGNAL(currentIndexChanged(int)), modifier,
                      SLOT(changeShadowQuality(int)));

     QObject::connect(modifier, &ScatterDataModifier::shadowQualityChanged, shadowQuality,
                      &QComboBox::setCurrentIndex);

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