Introduce QLockableObserverInterface

We introduce QLockableObserverInterface as an intermediate interface
before the QChangeArbiter and depend on that interface whenever
possible.

Change-Id: Ic92efec8d68c88344bb43f8fc7dc10b1212180af
Reviewed-by: Sean Harmer <sean.harmer@kdab.com>

1 files changed, 64 insertions, 0 deletions

diff --git a/src/core/qlockableobserverinterface_p.h b/src/core/qlockableobserverinterface_p.h
new file mode 100644
index 000000000..973c20244
--- /dev/null
+++ b/src/core/qlockableobserverinterface_p.h
@@ -0,0 +1,64 @@
+/****************************************************************************
+**
+** Copyright (C) 2015 Klaralvdalens Datakonsult AB (KDAB).
+** Contact: http://www.qt-project.org/legal
+**
+** This file is part of the Qt3D module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
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+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
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+** rights.  These rights are described in the Digia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
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+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef QT3D_QLOCKABLEOBSERVERINTERFACE_P_H
+#define QT3D_QLOCKABLEOBSERVERINTERFACE_P_H
+
+#include <Qt3DCore/private/qobserverinterface_p.h>
+
+QT_BEGIN_NAMESPACE
+
+namespace Qt3D {
+
+class QT3DCORESHARED_EXPORT QLockableObserverInterface : public QObserverInterface
+{
+public:
+    virtual ~QLockableObserverInterface();
+    virtual void sceneChangeEventWithLock(const QSceneChangePtr &e) = 0;
+};
+
+} // namespace Qt3D
+
+QT_END_NAMESPACE
+
+Q_DECLARE_METATYPE(Qt3D::QLockableObserverInterface *)
+
+#endif // QT3D_QLOCKABLEOBSERVERINTERFACE_P_H