--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Framework/Deprecated/Widgets/IWorldSceneMouseTracker.h	Tue May 21 14:27:35 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 "../../Viewport/CairoContext.h"
+#include "../Viewport/IMouseTracker.h" // only to get the "Touch" definition
+
+namespace Deprecated
+{
+
+  // this is tracking a mouse in scene coordinates/mm unlike
+  // the IMouseTracker that is tracking a mouse
+  // in screen coordinates/pixels.
+  class IWorldSceneMouseTracker : public boost::noncopyable
+  {
+  public:
+    virtual ~IWorldSceneMouseTracker()
+    {
+    }
+
+    virtual bool HasRender() const = 0;
+
+    virtual void Render(OrthancStone::CairoContext& context,
+                        double zoom) = 0;
+
+    virtual void MouseUp() = 0;
+
+    virtual void MouseMove(int displayX,
+                           int displayY,
+                           double sceneX,
+                           double sceneY,
+                           const std::vector<Touch>& displayTouches,
+                           const std::vector<Touch>& sceneTouches) = 0;
+  };
+}