QComponent: add array of referenced entities

This will allow us to easily check which entities reference a given
component. This will make sharing components easier and avoid us having to
have RenderEntity like classes in every aspect just to check if a Component
is being referenced.

Change-Id: Ie6876dba334249c10f93a8f815dc45c31a83c755
Reviewed-by: Sean Harmer <sean.harmer@kdab.com>

1 files changed, 4 insertions, 0 deletions

diff --git a/src/core/nodes/qcomponent_p.h b/src/core/nodes/qcomponent_p.h
index cc7b55379..f7d9ffb29 100644
--- a/src/core/nodes/qcomponent_p.h
+++ b/src/core/nodes/qcomponent_p.h
@@ -54,8 +54,12 @@ class QT3DCORESHARED_EXPORT QComponentPrivate : public QNodePrivate
 public:
     explicit QComponentPrivate(QComponent *qq);
 
+    void addEntity(QEntity *entity);
+    void removeEntity(QEntity *entity);
+
     Q_DECLARE_PUBLIC(QComponent)
     bool m_shareable;
+    QVector<QEntity *> m_entities;
 };
 
 }