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++ // Copyright (C) 2016 Klaralvdalens Datakonsult AB (KDAB).
++ // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only
++
++ #include "scene.h"
++
++ #include <QGuiApplication>
++
++ #include <Qt3DCore/qentity.h>
++ #include <QtGui/QScreen>
++
++ #include <QtWidgets/QApplication>
++ #include <QtWidgets/QWidget>
++ #include <QtWidgets/QHBoxLayout>
++ #include <QtWidgets/QSlider>
++ #include <QtWidgets/QLabel>
++ #include <QtWidgets/QPushButton>
++
++ #include <Qt3DRender/qcamera.h>
++ #include <Qt3DInput/QInputAspect>
++ #include <Qt3DExtras/qforwardrenderer.h>
++ #include <Qt3DExtras/qt3dwindow.h>
++ #include <Qt3DExtras/qfirstpersoncameracontroller.h>
++
++ int main(int argc, char **argv)
++ {
++ QApplication app(argc, argv);
++
++ Qt3DExtras::Qt3DWindow *view = new Qt3DExtras::Qt3DWindow();
++ view->defaultFrameGraph()->setClearColor(QColor(QRgb(0x4d4d4f)));
++ QWidget *container = QWidget::createWindowContainer(view);
++ QSize screenSize = view->screen()->size();
++ container->setMinimumSize(QSize(200, 100));
++ container->setMaximumSize(screenSize);
++
++ Qt3DInput::QInputAspect *input = new Qt3DInput::QInputAspect;
++ view->registerAspect(input);
++
++ // Root entity
++ Qt3DCore::QEntity *rootEntity = new Qt3DCore::QEntity();
++
++ // Camera
++ Qt3DRender::QCamera *cameraEntity = view->camera();
++
++ cameraEntity->setPosition(QVector3D(0, 0, 20.0f));
++ cameraEntity->setUpVector(QVector3D(0, 1, 0));
++ cameraEntity->setViewCenter(QVector3D(0, 0, 0));
++
++ // For camera controls
++ Qt3DExtras::QFirstPersonCameraController *camController = new Qt3DExtras::QFirstPersonCameraController(rootEntity);
++ camController->setCamera(cameraEntity);
++
++ // scene
++ Scene *scene = new Scene(rootEntity);
++
++ // Set root object of the scene
++ view->setRootEntity(rootEntity);
++
++ // 'Generate New' Button
++ QPushButton *genNewButton = new QPushButton();
++ genNewButton->setText("Generate New");
++ QObject::connect(genNewButton, &QPushButton::pressed, scene, &Scene::redrawTexture);
++
++ // current size label
++ QLabel *sizeLabel = new QLabel();
++ sizeLabel->setText(QString("Current Size: 128x128"));
++
++ // 'Change Size' Slider
++ QSlider *changeSizeSlider = new QSlider();
++ changeSizeSlider->setOrientation(Qt::Horizontal);
++ changeSizeSlider->setMinimum(0);
++ changeSizeSlider->setMaximum(4);
++ QObject::connect(changeSizeSlider, &QSlider::valueChanged, scene, [scene, sizeLabel](int value) {
++ int sz = 128 << value;
++ scene->setSize(QSize(sz, sz));
++ sizeLabel->setText(QString("Current Size: %1x%1").arg(sz));
++ });
++
++ // create widget
++ QWidget *widget = new QWidget;
++ widget->setWindowTitle(QStringLiteral("QPaintedTexture Example"));
++
++ QVBoxLayout *hLayout = new QVBoxLayout(widget);
++ hLayout->addWidget(container, 1);
++ hLayout->addWidget(genNewButton, 1);
++ hLayout->addWidget(changeSizeSlider, 1);
++ hLayout->addWidget(sizeLabel);
++
++ // Show window
++ widget->show();
++ widget->resize(1200, 800);
++
++ return app.exec();
++ }