scenemodifier.cpp Example File

basicshapes-cpp/scenemodifier.cpp
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#include "scenemodifier.h"

#include <QtCore/QDebug>

SceneModifier::SceneModifier(Qt3DCore::QEntity *rootEntity)
    : m_rootEntity(rootEntity)
{

    // Torus shape data
    m_torus = new Qt3DRender::QTorusMesh();
    m_torus->setRadius(1.0f);
    m_torus->setMinorRadius(0.4f);
    m_torus->setRings(100);
    m_torus->setSlices(20);

    // TorusMesh Transform
    Qt3DCore::QTransform *torusTransform = new Qt3DCore::QTransform();
    torusTransform->setScale(2.0f);
    torusTransform->setRotation(QQuaternion::fromAxisAndAngle(QVector3D(0.0f, 1.0f, 0.0f), 25.0f));
    torusTransform->setTranslation(QVector3D(4.0f, 4.0f, 0.0f));

    Qt3DRender::QPhongMaterial *torusMaterial = new Qt3DRender::QPhongMaterial();
    torusMaterial->setDiffuse(QColor(QRgb(0xbeb32b)));

    // Torus
    m_torusEntity = new Qt3DCore::QEntity(m_rootEntity);
    m_torusEntity->addComponent(m_torus);
    m_torusEntity->addComponent(torusMaterial);
    m_torusEntity->addComponent(torusTransform);

    // Cylinder shape data
    Qt3DRender::QCylinderMesh *cylinder = new Qt3DRender::QCylinderMesh();
    cylinder->setRadius(1);
    cylinder->setLength(3);
    cylinder->setRings(100);
    cylinder->setSlices(20);

    // CylinderMesh Transform
    Qt3DCore::QTransform *cylinderTransform = new Qt3DCore::QTransform();
    cylinderTransform->setScale(1.5f);
    cylinderTransform->setRotation(QQuaternion::fromAxisAndAngle(QVector3D(1.0f, 0.0f, 0.0f), 45.0f));
    cylinderTransform->setTranslation(QVector3D(-4.0f, 4.0f, -1.5));

    Qt3DRender::QPhongMaterial *cylinderMaterial = new Qt3DRender::QPhongMaterial();
    cylinderMaterial->setDiffuse(QColor(QRgb(0x928327)));

    // Cylinder
    m_cylinderEntity = new Qt3DCore::QEntity(m_rootEntity);
    m_cylinderEntity->addComponent(cylinder);
    m_cylinderEntity->addComponent(cylinderMaterial);
    m_cylinderEntity->addComponent(cylinderTransform);

    // Cuboid shape data
    Qt3DRender::QCuboidMesh *cuboid = new Qt3DRender::QCuboidMesh();

    // CuboidMesh Transform
    Qt3DCore::QTransform *cuboidTransform = new Qt3DCore::QTransform();
    cuboidTransform->setScale(4.0f);
    cuboidTransform->setTranslation(QVector3D(4.0f, -4.0f, 0.0f));

    Qt3DRender::QPhongMaterial *cuboidMaterial = new Qt3DRender::QPhongMaterial();
    cuboidMaterial->setDiffuse(QColor(QRgb(0x665423)));

    //Cuboid
    m_cuboidEntity = new Qt3DCore::QEntity(m_rootEntity);
    m_cuboidEntity->addComponent(cuboid);
    m_cuboidEntity->addComponent(cuboidMaterial);
    m_cuboidEntity->addComponent(cuboidTransform);

    // Sphere shape data
    Qt3DRender::QSphereMesh *sphereMesh = new Qt3DRender::QSphereMesh();
    sphereMesh->setRings(20);
    sphereMesh->setSlices(20);
    sphereMesh->setRadius(2);

    // Sphere mesh transform
    Qt3DCore::QTransform *sphereTransform = new Qt3DCore::QTransform();

    sphereTransform->setScale(1.3f);
    sphereTransform->setTranslation(QVector3D(-4.0f, -4.0f, 0.0f));

    Qt3DRender::QPhongMaterial *sphereMaterial = new Qt3DRender::QPhongMaterial();
    sphereMaterial->setDiffuse(QColor(QRgb(0xa69929)));

    // Sphere
    m_sphereEntity = new Qt3DCore::QEntity(m_rootEntity);
    m_sphereEntity->addComponent(sphereMesh);
    m_sphereEntity->addComponent(sphereMaterial);
    m_sphereEntity->addComponent(sphereTransform);
}

SceneModifier::~SceneModifier()
{
}

void SceneModifier::enableTorus(bool enabled)
{
    m_torusEntity->setParent(enabled ? m_rootEntity : Q_NULLPTR);
}

void SceneModifier::enableCylinder(bool enabled)
{
    m_cylinderEntity->setParent(enabled ? m_rootEntity : Q_NULLPTR);
}

void SceneModifier::enableCuboid(bool enabled)
{
    m_cuboidEntity->setParent(enabled ? m_rootEntity : Q_NULLPTR);
}

void SceneModifier::enableSphere(bool enabled)
{
    m_sphereEntity->setParent(enabled ? m_rootEntity : Q_NULLPTR);
}

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