From c822a614a7f42582476f614a91cc5b08bb712ab7 Mon Sep 17 00:00:00 2001
From: Sean Harmer <sean.harmer@kdab.com>
Date: Sun, 10 Apr 2016 09:55:03 +0100
Subject: Add temporary flag to allow QNode to avoid cloning

Change-Id: I13435b356a2466daa37e5913b4889f7be233591e
Reviewed-by: Paul Lemire <paul.lemire@kdab.com>
---
 src/core/nodes/qnode.cpp | 1 +
 src/core/nodes/qnode_p.h | 3 +++
 2 files changed, 4 insertions(+)

diff --git a/src/core/nodes/qnode.cpp b/src/core/nodes/qnode.cpp
index f6b43a925..71b88a2ee 100644
--- a/src/core/nodes/qnode.cpp
+++ b/src/core/nodes/qnode.cpp
@@ -60,6 +60,7 @@ QT_BEGIN_NAMESPACE
 namespace Qt3DCore {
 
 QHash<QNodeId, QNode *> QNodePrivate::m_clonesLookupTable = QHash<QNodeId, QNode *>();
+const bool QNodePrivate::ms_useCloning = !qEnvironmentVariableIsSet("QT3D_NO_CLONE");
 
 QNodePrivate::QNodePrivate()
     : QObjectPrivate()
diff --git a/src/core/nodes/qnode_p.h b/src/core/nodes/qnode_p.h
index d8aa7e98f..17c38ba53 100644
--- a/src/core/nodes/qnode_p.h
+++ b/src/core/nodes/qnode_p.h
@@ -112,6 +112,9 @@ private:
     PropertyChangeHandler<QNodePrivate> m_signals;
 
     static QHash<QNodeId, QNode *> m_clonesLookupTable;
+
+    // Temporary flag so QNode know's whether to use cloning or not
+    static const bool ms_useCloning;
 };
 
 } // namespace Qt3DCore
-- 
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