#include MainWindow::MainWindow() { QPixmap pixmap = QPixmap(); pixmap.loadFromData(icon, icon_size); QWidget* content_widget = new QWidget(); QGridLayout* grid = new QGridLayout(); this->graphics_widget = new GL::Widget(); grid->addWidget(this->graphics_widget, 0, 0, 1, 1); content_widget->setLayout(grid); setWindowTitle(QString("RNR Studio")); setWindowIcon(QIcon(pixmap)); setCentralWidget(content_widget); } void MainWindow::closeEvent(QCloseEvent* event) { // }