Refactored QAbstractSceneLoader and QSceneLoader

QNode, also to make deep clones and shallow clones.

Change-Id: I38362485e3f7870da3d49aba95603fe4d61876fe
Reviewed-by: Sean Harmer <sean.harmer@kdab.com>

1 files changed, 35 insertions, 0 deletions

diff --git a/src/render/frontend/qsceneloader.cpp b/src/render/frontend/qsceneloader.cpp
index 62ed87ac8..2d938fdb5 100644
--- a/src/render/frontend/qsceneloader.cpp
+++ b/src/render/frontend/qsceneloader.cpp
@@ -40,6 +40,12 @@
 ****************************************************************************/
 
 #include "qsceneloader.h"
+#include "qabstractsceneloader_p.h"
+#include <Qt3DCore/qsceneinterface.h>
+#include <Qt3DCore/qscenepropertychange.h>
+#include <Qt3DCore/qentity.h>
+#include "renderlogging.h"
+#include <QThread>
 
 QT_BEGIN_NAMESPACE
 
@@ -50,6 +56,35 @@ QSceneLoader::QSceneLoader(QNode *parent)
 {
 }
 
+// Called in main thread
+void QSceneLoader::sceneChangeEvent(const QSceneChangePtr &change)
+{
+    Q_D(Render::QAbstractSceneLoader);
+    QScenePropertyChangePtr e = qSharedPointerCast<QScenePropertyChange>(change);
+    if (e->type() == ComponentUpdated) {
+        if (e->propertyName() == QByteArrayLiteral("scene")) {
+            QEntity *scene = e->value().value<QEntity *>();
+            if (scene != Q_NULLPTR && d->m_scene != Q_NULLPTR) {
+                QList<QUuid> entities = d->m_scene->entitiesForComponent(d->m_uuid);
+                if (entities.size() > 1)
+                    qCWarning(Render::Frontend) << "It is strongly discouraged to share SceneLoader component between entities";
+                Q_FOREACH (const QUuid &id, entities) {
+                    QEntity *parentEntity = qobject_cast<QEntity *>(d->m_scene->lookupNode(id));
+                    if (parentEntity != Q_NULLPTR) {
+                        QEntity *cloneScene = qobject_cast<QEntity *>(scene->clone(Q_NULLPTR, false));
+                        // TO DO : Make that work
+//                        qDebug() << QThread::currentThread() << parentEntity->thread() << scene->thread() << cloneScene->thread();
+//                        parentEntity->addChild(cloneScene);
+                    }
+                }
+            }
+        }
+        else if (e->propertyName() == QByteArrayLiteral("status")) {
+            QAbstractSceneLoader::setStatus(static_cast<QAbstractSceneLoader::Status>(e->value().toInt()));
+        }
+    }
+}
+
 QNode *QSceneLoader::doClone(QNode *clonedParent) const
 {
     return new QSceneLoader(clonedParent);