Doc: Add doc to undocumented methods

- qcomponent.cpp
- qbackendnode.cpp
- qjoint.cpp
- qskeletonloader.cpp
- qframeaction.cpp
- qscene2d.h
- qrenderaspect.cpp

Change-Id: I25881dee19d2d01f948bfaf4a156a97f6caaea73
Reviewed-by: Laszlo Agocs <laszlo.agocs@qt.io>

2 files changed, 19 insertions, 0 deletions

diff --git a/src/core/nodes/qbackendnode.cpp b/src/core/nodes/qbackendnode.cpp
index 62ca14b4b..f10bf5769 100644
--- a/src/core/nodes/qbackendnode.cpp
+++ b/src/core/nodes/qbackendnode.cpp
@@ -207,6 +207,11 @@ void QBackendNode::notifyObservers(const QSceneChangePtr &e)
     d->notifyObservers(e);
 }
 
+/*!
+    Send the command named \a name with contents \a data,
+    and specify \a replyTo as the command id to which the
+    reply needs to be sent.
+*/
 QNodeCommand::CommandId QBackendNode::sendCommand(const QString &name,
                                                   const QVariant &data,
                                                   QNodeCommand::CommandId replyTo)
@@ -220,6 +225,9 @@ QNodeCommand::CommandId QBackendNode::sendCommand(const QString &name,
     return e->commandId();
 }
 
+/*!
+    Send the reply to \a command.
+*/
 void QBackendNode::sendReply(const QNodeCommandPtr &command)
 {
     command->setDeliveryFlags(QSceneChange::Nodes);
diff --git a/src/core/nodes/qcomponent.cpp b/src/core/nodes/qcomponent.cpp
index f4e59e058..e678880e8 100644
--- a/src/core/nodes/qcomponent.cpp
+++ b/src/core/nodes/qcomponent.cpp
@@ -112,6 +112,17 @@ void QComponentPrivate::removeEntity(QEntity *entity)
 */
 
 /*!
+    \fn Qt3DCore::QComponent::addedToEntity(Qt3DCore::QEntity *entity)'
+
+    Indicates that a reference has been added to \a entity.
+*/
+/*!
+    \fn Qt3DCore::QComponent::removedFromEntity(Qt3DCore::QEntity *entity)
+
+    Indicates that a reference has been removed from \a entity.
+
+*/
+/*!
     Constructs a new QComponent instance with \a parent as the parent.
     \note a QComponent should never be instanced directly,
     instance one of the subclasses instead.