--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Applications/Generic/Scene2DInteractor.h	Tue Jul 09 14:43:00 2019 +0200
@@ -0,0 +1,52 @@
+/**
+ * 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 "../../Framework/Scene2D/PointerEvent.h"
+#include "../../Framework/Scene2DViewport/ViewportController.h"
+#include "../../Framework/Scene2D/Internals/CompositorHelper.h"
+#include "GuiAdapter.h"
+
+
+namespace OrthancStone
+{
+
+  class Scene2DInteractor
+  {
+  protected:
+    boost::shared_ptr<ViewportController>       viewportController_;
+    boost::shared_ptr<ICompositor>              compositor_;
+
+  public:
+    Scene2DInteractor(boost::shared_ptr<ViewportController> viewportController) :
+      viewportController_(viewportController)
+    {}
+
+    void SetCompositor(boost::shared_ptr<ICompositor> compositor)
+    {
+      compositor_ = compositor;
+    }
+
+    virtual bool OnMouseEvent(const GuiAdapterMouseEvent& guiEvent, const PointerEvent& pointerEvent) = 0; // returns true if it has handled the event
+    virtual bool OnKeyboardEvent(const GuiAdapterKeyboardEvent& guiEvent) = 0; // returns true if it has handled the event
+    virtual bool OnWheelEvent(const GuiAdapterWheelEvent& guiEvent) = 0; // returns true if it has handled the event
+
+  };
+}