--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Framework/Scene2DViewport/MeasureTrackers.h	Wed May 15 16:56:17 2019 +0200
@@ -0,0 +1,57 @@
+/**
+ * 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 "IFlexiblePointerTracker.h"
+#include "../../Framework/Scene2D/Scene2D.h"
+#include "../../Framework/Scene2D/PointerEvent.h"
+
+#include "MeasureTools.h"
+#include "MeasureCommands.h"
+
+#include <vector>
+
+namespace OrthancStone
+{
+  class CreateMeasureTracker : public IFlexiblePointerTracker
+  {
+  public:
+    virtual void Cancel() ORTHANC_OVERRIDE;
+    virtual bool IsActive() const ORTHANC_OVERRIDE;
+  protected:
+    CreateMeasureTracker(
+      Scene2DWPtr                     scene,
+      std::vector<TrackerCommandPtr>& undoStack,
+      std::vector<MeasureToolPtr>&    measureTools);
+
+    ~CreateMeasureTracker();
+  
+  protected:
+    CreateMeasureCommandPtr         command_;
+    Scene2DWPtr                     scene_;
+    bool                            active_;
+  private:
+    std::vector<TrackerCommandPtr>& undoStack_;
+    std::vector<MeasureToolPtr>&    measureTools_;
+    bool                            commitResult_;
+  };
+}
+