--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Framework/Scene2D/ISceneLayer.h	Fri Apr 19 16:43:08 2019 +0200
@@ -0,0 +1,54 @@
+/**
+ * Stone of Orthanc
+ * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics
+ * Department, University Hospital of Liege, Belgium
+ * Copyright (C) 2017-2019 Osimis S.A., Belgium
+ *
+ * This program is free software: you can redistribute it and/or
+ * modify it under the terms of the GNU Affero General Public License
+ * as published by the Free Software Foundation, either version 3 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Affero General Public License for more details.
+ * 
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ **/
+
+
+#pragma once
+
+#include "../Toolbox/Extent2D.h"
+
+#include <boost/noncopyable.hpp>
+#include <stdint.h>
+
+namespace OrthancStone
+{
+  class ISceneLayer : public boost::noncopyable
+  {
+  public:
+    enum Type
+    {
+      Type_InfoPanel,
+      Type_Texture,
+      Type_Polyline,
+      Type_Text
+    };
+
+    virtual ~ISceneLayer()
+    {
+    }
+
+    virtual ISceneLayer* Clone() const = 0;
+
+    virtual Type GetType() const = 0;
+
+    virtual bool GetBoundingBox(Extent2D& target) const = 0;
+
+    virtual uint64_t GetRevision() const = 0;
+  };
+}