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| ** Copyright (C) 2016 Klaralvdalens Datakonsult AB (KDAB). |
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| ** This file is part of the Qt3D module of the Qt Toolkit. |
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| ****************************************************************************/ |
| |
| #include <QGuiApplication> |
| |
| #include <Qt3DRender/qcamera.h> |
| #include <Qt3DExtras/qcylindermesh.h> |
| #include <Qt3DExtras/qspheremesh.h> |
| #include <Qt3DExtras/qphongmaterial.h> |
| |
| #include <Qt3DCore/qentity.h> |
| #include <Qt3DCore/qtransform.h> |
| |
| #include <Qt3DExtras/qt3dwindow.h> |
| #include <Qt3DExtras/qorbitcameracontroller.h> |
| |
| #include <QTimer> |
| |
| class ComponentSwapper : public QObject |
| { |
| Q_OBJECT |
| public: |
| ComponentSwapper(Qt3DCore::QEntity *entity, |
| Qt3DCore::QComponent *component1, |
| Qt3DCore::QComponent *component2, |
| QObject * parent = nullptr) |
| : QObject(parent) |
| , m_entity(entity) |
| , m_component1(component1) |
| , m_component2(component2) |
| , m_currentComponent(component1) |
| { |
| // Set initial state |
| m_entity->addComponent(m_component1); |
| } |
| |
| public slots: |
| void swapComponents() |
| { |
| if (m_currentComponent == m_component1) { |
| m_entity->removeComponent(m_component1); |
| m_entity->addComponent(m_component2); |
| m_currentComponent = m_component2; |
| } else { |
| m_entity->removeComponent(m_component2); |
| m_entity->addComponent(m_component1); |
| m_currentComponent = m_component1; |
| } |
| } |
| |
| private: |
| Qt3DCore::QEntity *m_entity; |
| Qt3DCore::QComponent *m_component1; |
| Qt3DCore::QComponent *m_component2; |
| Qt3DCore::QComponent *m_currentComponent; |
| }; |
| |
| |
| int main(int argc, char **argv) |
| { |
| QGuiApplication app(argc, argv); |
| Qt3DExtras::Qt3DWindow view; |
| |
| // Root entity |
| Qt3DCore::QEntity *rootEntity = new Qt3DCore::QEntity(); |
| |
| // Camera |
| Qt3DRender::QCamera *camera = view.camera(); |
| camera->setPosition(QVector3D(0, 0, 20.0f)); |
| camera->setViewCenter(QVector3D(0, 0, 0)); |
| |
| // For camera controls |
| Qt3DExtras::QOrbitCameraController *cameraController = new Qt3DExtras::QOrbitCameraController(rootEntity); |
| cameraController->setCamera(camera); |
| |
| // Cylinder mesh data |
| Qt3DExtras::QCylinderMesh *cylinderMesh = new Qt3DExtras::QCylinderMesh(); |
| cylinderMesh->setRadius(1); |
| cylinderMesh->setLength(3); |
| cylinderMesh->setRings(5); |
| cylinderMesh->setSlices(40); |
| |
| // Sphere mesh data |
| Qt3DExtras::QSphereMesh *sphereMesh = new Qt3DExtras::QSphereMesh(); |
| sphereMesh->setRings(20); |
| sphereMesh->setSlices(40); |
| |
| // Transform for cylinder |
| Qt3DCore::QTransform *transform = new Qt3DCore::QTransform; |
| transform->setScale(1.5f); |
| transform->setRotation(QQuaternion::fromAxisAndAngle(QVector3D(1, 0, 0), 45.0f)); |
| |
| // Material |
| Qt3DExtras::QPhongMaterial *material = new Qt3DExtras::QPhongMaterial(rootEntity); |
| material->setDiffuse(Qt::red); |
| |
| // Cylinder |
| Qt3DCore::QEntity *cylinder = new Qt3DCore::QEntity(rootEntity); |
| cylinder->addComponent(transform); |
| cylinder->addComponent(material); |
| |
| // Set root object of the scene |
| view.setRootEntity(rootEntity); |
| view.show(); |
| |
| ComponentSwapper *swapper = new ComponentSwapper(cylinder, cylinderMesh, sphereMesh); |
| QTimer *timer = new QTimer; |
| QObject::connect(timer, SIGNAL(timeout()), swapper, SLOT(swapComponents())); |
| timer->start(2000); |
| |
| return app.exec(); |
| } |
| |
| #include "main.moc" |