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#include "scenehelper.h"QObject*SceneHelper::findEntity(Qt3DRender::QSceneLoader*loader,constQString&name)
{
// The QSceneLoader instance is a component of an entity. The loaded scene// tree is added under this entity.QVector<Qt3DCore::QEntity*> entities = loader->entities();
if (entities.isEmpty())
return0;
// Technically there could be multiple entities referencing the scene loader// but sharing is discouraged, and in our case there will be one anyhow.Qt3DCore::QEntity*root = entities[0];
// The scene structure and names always depend on the asset.return root->findChild<Qt3DCore::QEntity*>(name);
}
void SceneHelper::removeFromScene(Qt3DRender::QSceneLoader*loader,constQStringList&names)
{
QVector<Qt3DCore::QEntity*> entities = loader->entities();
if (entities.isEmpty())
return;
Qt3DCore::QEntity*root = entities[0];
foreach (QString name, names) {
QObject*entity = root->findChild<Qt3DCore::QEntity*>(name);
entity->setParent(Q_NULLPTR);
}
}
void SceneHelper::addBasicMaterials(Qt3DRender::QSceneLoader*loader,Qt3DRender::QMaterial*material,QStringList names)
{
QVector<Qt3DCore::QEntity*> entities = loader->entities();
if (entities.isEmpty())
return;
Qt3DCore::QEntity*root = entities[0];
addComponents(names, root, material);
}
void SceneHelper::addTextureMaterial(Qt3DRender::QSceneLoader*loader,Qt3DRender::QMaterial*material,QString name)
{
QVector<Qt3DCore::QEntity*> entities = loader->entities();
if (entities.isEmpty())
return;
Qt3DCore::QEntity*root = entities[0];
addComponent(name, root, material);
}
void SceneHelper::replaceMaterial(Qt3DRender::QSceneLoader*loader,constQString&name,Qt3DRender::QMaterial*material)
{
QVector<Qt3DCore::QEntity*> entities = loader->entities();
if (entities.isEmpty())
return;
Qt3DCore::QEntity*root = entities[0];
Qt3DCore::QEntity*entity = root->findChild<Qt3DCore::QEntity*>(name);
if (entity) {
#if (QT_VERSION >= QT_VERSION_CHECK(5, 7, 0))QVector<Qt3DCore::QComponent*> components = entity->components();
#elseQt3DCore::QComponentList components = entity->components();
#endif
foreach (Qt3DCore::QComponent*comp, components) {
if (qobject_cast<Qt3DRender::QMaterial*>(comp)) {
entity->removeComponent(comp);
break;
}
}
entity->addComponent(material);
}
}
void SceneHelper::addComponents(QStringList&names,Qt3DCore::QEntity*root,Qt3DRender::QMaterial*material)
{
foreach (QString name, names) {
Qt3DCore::QEntity*entity = root->findChild<Qt3DCore::QEntity*>(name);
if (entity) {
#if (QT_VERSION >= QT_VERSION_CHECK(5, 7, 0))QVector<Qt3DCore::QComponent*> components = entity->components();
#elseQt3DCore::QComponentList components = entity->components();
#endif
foreach (Qt3DCore::QComponent*comp, components) {
if (qobject_cast<Qt3DRender::QMaterial*>(comp)) {
//qDebug() << " removing " << comp;
entity->removeComponent(comp);
break;
}
}
entity->addComponent(material);
}
}
}
void SceneHelper::searchCamera(Qt3DRender::QSceneLoader*loader,constQString&name)
{
QVector<Qt3DCore::QEntity*> entities = loader->entities();
if (entities.isEmpty())
return;
Qt3DCore::QEntity*root = entities[0];
Qt3DCore::QEntity*entity = root->findChild<Qt3DCore::QEntity*>(name);
//qDebug() << "Found entity " << entity;#if (QT_VERSION >= QT_VERSION_CHECK(5, 7, 0))QVector<Qt3DCore::QComponent*> components = entity->components();
#elseQt3DCore::QComponentList components = entity->components();
#endif
foreach (Qt3DCore::QComponent*comp, components) {
#if (QT_VERSION >= QT_VERSION_CHECK(5, 7, 0))if (qobject_cast<Qt3DRender::QCameraLens*>(comp)) {
Qt3DRender::QCameraLens*lens = qobject_cast<Qt3DRender::QCameraLens*>(comp);
Q_UNUSED(lens)
}
#elseif (qobject_cast<Qt3DCore::QCameraLens*>(comp)) {
Qt3DCore::QCameraLens*lens = qobject_cast<Qt3DCore::QCameraLens*>(comp);
}
#endif
}
}
void SceneHelper::addComponent(QString&name,Qt3DCore::QEntity*root,Qt3DRender::QMaterial*material)
{
Qt3DCore::QEntity*entity = root->findChild<Qt3DCore::QEntity*>(name);
if (entity) {
#if (QT_VERSION >= QT_VERSION_CHECK(5, 7, 0))QVector<Qt3DCore::QComponent*> components = entity->components();
#elseQt3DCore::QComponentList components = entity->components();
#endif
foreach (Qt3DCore::QComponent*comp, components) {
if (qobject_cast<Qt3DRender::QMaterial*>(comp)) {
entity->removeComponent(comp);
break;
}
}
entity->addComponent(material);
} else {
}
}
void SceneHelper::addListEntry(constQVariant&list,QObject*entry)
{
QQmlListReference ref = list.value<QQmlListReference>();
ref.append(entry);
}