QAspectEngine QNode lookup table

QNode now contains an instance of the QAspectEngine. When the scene is first
created, all nodes are traversed and inserted in a table referenced by their
uuid.
When new nodes are added at runtine, QNode::addChild takes care of inserting
the new node into the QAspectEngine's table. The same applies for
QNode::removeChild.
QNode now also has a isCloned() method.
QFrontendSceneObserver has a pointer to the QAspectEngine.
QFrontendSceneObserver will need to check in the QAspectEngine's table if a
node is available to receive the notification when sceneUpdated is called.

Change-Id: Ic243261ecff5e15f841ca180cb97ba65df2b3bfb
Reviewed-by: Sean Harmer <sean.harmer@kdab.com>

1 files changed, 9 insertions, 1 deletions

diff --git a/src/core/aspects/qaspectengine.h b/src/core/aspects/qaspectengine.h
index 613878b2e..90df4b979 100644
--- a/src/core/aspects/qaspectengine.h
+++ b/src/core/aspects/qaspectengine.h
@@ -52,6 +52,7 @@ class QWindow;
 
 namespace Qt3D {
 
+class QNode;
 class QAbstractAspect;
 class QAspectThread;
 class QAspectEnginePrivate;
@@ -65,13 +66,20 @@ public:
     void initialize();
     void shutdown();
 
-    void setRoot(QObject *rootObject);
+    void setRoot(QNode *rootObject);
     void setWindow(QWindow *window);
     void registerAspect(QAbstractAspect *aspect);
 
+    void addNodeLookup(QNode *node);
+    void removeNodeLookup(QNode *node);
+    QNode *lookupNode(const QUuid &id) const;
+
 protected:
     Q_DECLARE_PRIVATE(QAspectEngine)
     QAspectEngine(QAspectEnginePrivate &dd, QObject *parent = 0);
+
+private:
+    void initNodeTree(QNode *node);
 };
 
 } // namespace Qt3D