QSceneObserverInterface registered to QChangeArbiter

Registration occurs in QAspectManager::registerObserver just after the aspect
is initialized. QSceneObserverInterface instances are unregistered at shutdown
of the QAspectManager.

Change-Id: I8cbe575454b13c262885d9965f35665ab0ff17a3
Reviewed-by: Sean Harmer <sean.harmer@kdab.com>

1 files changed, 20 insertions, 0 deletions

diff --git a/src/core/qchangearbiter.cpp b/src/core/qchangearbiter.cpp
index 975ee1412..62d3e0361 100644
--- a/src/core/qchangearbiter.cpp
+++ b/src/core/qchangearbiter.cpp
@@ -194,6 +194,18 @@ void QChangeArbiter::registerObserver(QObserverInterface *observer,
     registerObserverHelper(observerList, observer, observable, changeFlags);
 }
 
+// Called from the QAspectThread context, no need to lock
+void QChangeArbiter::registerSceneObserver(QSceneObserverInterface *observer)
+{
+    if (observer == Q_NULLPTR) {
+        qCWarning(ChangeArbiter) << Q_FUNC_INFO << "SceneObserverInterface is null";
+        return ;
+    }
+    Q_D(QChangeArbiter);
+    if (!d->m_sceneObservers.contains(observer))
+        d->m_sceneObservers << observer;
+}
+
 void QChangeArbiter::registerObserverHelper(QObserverList &observerList,
                                             QObserverInterface *observer,
                                             QObservableInterface *observable,
@@ -238,6 +250,14 @@ void QChangeArbiter::unregisterObserver(QObserverInterface *observer, QNode *sub
     }
 }
 
+// Called from the QAspectThread context, no need to lock
+void QChangeArbiter::unregisterSceneObserver(QSceneObserverInterface *observer)
+{
+    Q_D(QChangeArbiter);
+    if (observer != Q_NULLPTR)
+        d->m_sceneObservers.removeOne(observer);
+}
+
 void QChangeArbiter::sceneChangeEvent(const QSceneChangePtr &e)
 {
 //    qCDebug(ChangeArbiter) << Q_FUNC_INFO << QThread::currentThread();