--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Applications/Samples/SimpleViewer/ThumbnailInteractor.h	Thu Oct 11 13:16:54 2018 +0200
@@ -0,0 +1,73 @@
+/**
+ * Stone of Orthanc
+ * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics
+ * Department, University Hospital of Liege, Belgium
+ * Copyright (C) 2017-2018 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/Widgets/IWorldSceneInteractor.h"
+
+using namespace OrthancStone;
+
+namespace SimpleViewer {
+
+  class SimpleViewerApplication;
+
+  class ThumbnailInteractor : public IWorldSceneInteractor
+  {
+  private:
+    SimpleViewerApplication&  application_;
+  public:
+    ThumbnailInteractor(SimpleViewerApplication&  application) :
+      application_(application)
+    {
+    }
+
+    virtual IWorldSceneMouseTracker* CreateMouseTracker(WorldSceneWidget& widget,
+                                                        const ViewportGeometry& view,
+                                                        MouseButton button,
+                                                        KeyboardModifiers modifiers,
+                                                        double x,
+                                                        double y,
+                                                        IStatusBar* statusBar);
+
+    virtual void MouseOver(CairoContext& context,
+                           WorldSceneWidget& widget,
+                           const ViewportGeometry& view,
+                           double x,
+                           double y,
+                           IStatusBar* statusBar)
+    {}
+
+    virtual void MouseWheel(WorldSceneWidget& widget,
+                            MouseWheelDirection direction,
+                            KeyboardModifiers modifiers,
+                            IStatusBar* statusBar)
+    {}
+
+    virtual void KeyPressed(WorldSceneWidget& widget,
+                            char key,
+                            KeyboardModifiers modifiers,
+                            IStatusBar* statusBar)
+    {}
+
+  };
+
+
+}