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, 5 insertions, 0 deletions

diff --git a/src/render/frontend/qrenderattachment.cpp b/src/render/frontend/qrenderattachment.cpp
index 8e3fd30af..35db47cc7 100644
--- a/src/render/frontend/qrenderattachment.cpp
+++ b/src/render/frontend/qrenderattachment.cpp
@@ -69,6 +69,11 @@ QRenderAttachment::QRenderAttachment(QNode *parent)
 {
 }
 
+QRenderAttachment::~QRenderAttachment()
+{
+    QNode::cleanup();
+}
+
 /*! \internal */
 QRenderAttachment::QRenderAttachment(QRenderAttachmentPrivate &dd, QNode *parent)
     : QNode(dd, parent)