QNode parent changes

- introduce QNode::setParent(QNode *)
- QNode created with explicit parent now invoke
  QNodePrivate::_q_addChild
- QNode::cleanup introduces, need to be added to the
  dtor of every QT3D_CLONABLE QNode subclass. Handles
  proper destruction.
- QNode::cleanup added to all classes that should have it.
- Updated unit tests of Nodes, Entity, Scene

Change-Id: Id2c2784122a78edaae5580fe5976d88be5a1921c
Task-number: QTBUG-45947
Reviewed-by: Sean Harmer <sean.harmer@kdab.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/src/core/transforms/qtransform.cpp b/src/core/transforms/qtransform.cpp
index f9700b60f..48bee2094 100644
--- a/src/core/transforms/qtransform.cpp
+++ b/src/core/transforms/qtransform.cpp
@@ -105,6 +105,7 @@ QTransform::QTransform(QTransformPrivate &dd, QNode *parent)
 
 QTransform::~QTransform()
 {
+    QNode::cleanup();
     Q_D(QTransform);
     // boost destruction by avoiding _q_update()-s
     d->m_transforms.clear();