#include "scenemode.h"
#include <QVBoxLayout>
#include <QtCore/QDebug>
SceneMode::SceneMode(QWidget *parent)
:QWidget(parent)
{ QWidget *container;
//isCameraEntityFlag = false;
screen = new MyGLWidget(); //先生成window类型，create()了，
但此时还未显示出来
rootEntity = new Qt3DCore::QEntity();
initConnection();
this->sizeHint();//初始化窗口大小
container = this->initWidget();
this->initEngine();
this->initCameraEntity();
this->initLight();
this->initFrameGraph();
this->initBasicEntity();
this->setEngine();
this->updateRatio(container);
this->initConnection2();//由于camera相关变量需要在
initCameraEntity相关函数之后才能调用，所以三个按键与
camera的联系不能写进initconnection函数当中
（2018年5月4号，今天工作结束）
qDebug() << "Basic is OK";
}
void SceneMode::initConnection()
{
connect(screen,SIGNAL(cameraLevel(int)),this,SLOT
(changeCameraLevel(int)));//滚轮（screen.h）改变视角
（changeCameraLevel中实现，还没看）--看到这里2018年3月18号
// connect(view1,SIGNAL(clicked(bool)),this,SLOT(sysView()));
// connect(view2,SIGNAL(clicked(bool)),this,SLOT(picView()));
// connect(view3,SIGNAL(clicked(bool)),this,SLOT(userView()));
}
void SceneMode::initConnection2()
{
connect(view1,SIGNAL(clicked(bool)),this,SLOT(sysView()));
connect(view2,SIGNAL(clicked(bool)),this,SLOT(picView()));
connect(view3,SIGNAL(clicked(bool)),this,SLOT(userView()));
connect(pic1,SIGNAL(picModes(int)),this,SLOT(pressx(int)));
}
QWidget* SceneMode::initWidget()
{
QHBoxLayout* displaylayout = new QHBoxLayout(this);//changed
QVBoxLayout* buttongroup = new QVBoxLayout;

displaylayout->setMargin(6);//控件与窗体的左右边距

是6个坐标轴单位据
this->setLayout(displaylayout);
QWidget *container = QWidget::createWindowContainer(screen);
//将window类放入容器里
QSize screenSize = screen->screen()->size();
container->setMinimumSize(QSize(100,100));
container->setMaximumSize(screenSize);
displaylayout->addWidget(container,1);//使得displaylayout能显示3D
container->show(); //最后再显示存放绘图的window

类的容器显示出来
return container;
}
void SceneMode::initEngine()
{
QVariantMap data;
this->engine = new Qt3DCore::QAspectEngine();
this->engine->registerAspect(new Qt3DRender::QRenderAspect());
this->input = new Qt3DInput::QInputAspect();
this->engine->registerAspect(this->input);

data.insert(QStringLiteral("surface"), QVariant::fromValue
(static_cast<QSurface *>(this->screen)));
data.insert(QStringLiteral("eventSource"), QVariant::fromValue
(this->screen));
this->engine->setData(data);
//89到96行尚未攻克 2018年3月20日
}
void SceneMode::initCameraEntity()
{
//qDebug() << "Camera is OK";
cameraEntity = new Qt3DCore::QCamera(rootEntity);
cameraEntity->setObjectName(QStringLiteral("cameraEntity"));
//qDebug() << "1";
cameraEntity->lens()->setPerspectiveProjection(45.0f, 16.0f/9.0f, 0.1f, 1000.0f);// void setPerspectiveProjection(float fieldOfView,
float aspect,float nearPlane, float farPlane);
yzaxisDelta = QVector3D(-7,-10,9);//调试出来
一个比较好的结果
camerapos = QVector3D(100,150,-90.0f);
camCenter = QVector3D(0,0,0);
// camera3dPosition = QVector3D(800.0f, 2000.0f, 4000.0f);
// camera3dCenter = QVector3D(800.0f, 0.0f, 0.0f);
cameraEntity->setPosition(camerapos);//cameraEntity->
setPosition(QVector3D(100, 150, -90.0f));
cameraEntity->setUpVector(QVector3D(0, 1, 0));
//UpVector表示了
你在建立视点坐标系时的摄像机向上的方向，
决定了坐标系该轴的
正值延伸方向(取±1）。
//levelDelta = QVector3D(0.0f, 0.5f, 0.0f);
//yaxisDelta = QVector3D(0.0f, 0.0f, 100.0f);
//视角中心与相机位置的差值
cameraEntity->setViewCenter(camCenter);
//摄影机投射的中心点,cameraEntity->setViewCenter(QVector3D(0,0,0));
input->setCamera(cameraEntity);
}
void SceneMode::initLight()
{
Qt3DRender::QSphereMesh* lightMesh = new Qt3DRender::
QSphereMesh(rootEntity); //设置光源：
把光源附着在某一Entity
上就可以确定移动位置
lightMesh->setRings(1);
lightMesh->setSlices(1);
lightMesh->setRadius(1);
Qt3DRender::QSpotLight* spotLight = new Qt3DRender::QSpotLight

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);

//sphere shape data2
Qt3DRender::QSphereMesh *sphereMesh2 = new Qt3DRender::QSphereMesh();
sphereMesh2->setRings(100);
sphereMesh2->setSlices(10);
sphereMesh2->setRadius(1);
//Sphere transformation
// Qt3DCore::QTransform *sphereTransform2 = new Qt3DCore::QTransform();
// sphereTransform2->setScale(2.0f);
// sphereTransform2->setTranslation(QVector3D(-16.0f,-8.0f,2.0f));
Qt3DRender::QPhongMaterial *sphereMaterial2 = new Qt3DRender::
QPhongMaterial();
sphereMaterial2->setDiffuse(QColor(QRgb(0xFFFFFF)));
//加载预置大小，材料以及位置参数
//t_sphereEntity = new Qt3DCore::QEntity(m_rootEntity);
//t_sphereEntity->addComponent(sphereMesh2);
//t_sphereEntity->addComponent(sphereMaterial2);
//t_sphereEntity->addComponent(sphereTransform2);
carEntity1 = new carEntity(m_rootEntity);
carEntity1->transform()->setScale3D(QVector3D(10,10,10));
carEntity1->transform()->setTranslation(QVector3D(0,0,0));
}
void SceneMode::updateRatio(QWidget* ctn)
{
QSize widgetSize = ctn->size();
float aspectRatio = float(widgetSize.width()) / float
(widgetSize.height());
cameraEntity->lens()->setPerspectiveProjection(60.0f,
aspectRatio, 0.1f, 100000.0f);
}
QSize SceneMode::sizeHint() const
{
return QSize(1024*3, 768*3);
}
void SceneMode::setEngine()
{
this->engine->setRootEntity(rootEntity);
}
SceneMode::~SceneMode()
{
}