--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/OrthancStone/Sources/Scene2DViewport/LineMeasureTool.h	Tue Jul 07 16:21:02 2020 +0200
@@ -0,0 +1,94 @@
+/**
+ * Stone of Orthanc
+ * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics
+ * Department, University Hospital of Liege, Belgium
+ * Copyright (C) 2017-2020 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 "../Scene2D/PolylineSceneLayer.h"
+#include "../Scene2D/Scene2D.h"
+#include "../Scene2D/ScenePoint2D.h"
+#include "../Scene2D/TextSceneLayer.h"
+#include "MeasureTool.h"
+
+#include <boost/shared_ptr.hpp>
+#include <boost/weak_ptr.hpp>
+#include <boost/enable_shared_from_this.hpp>
+
+#include <vector>
+#include <cmath>
+
+namespace OrthancStone
+{
+  class LineMeasureTool : public MeasureTool
+  {
+  public:
+    static boost::shared_ptr<LineMeasureTool> Create(boost::shared_ptr<IViewport> viewport);
+
+    ~LineMeasureTool();
+
+    void SetStart(ScenePoint2D start);
+    void SetEnd(ScenePoint2D end);
+    void Set(ScenePoint2D start, ScenePoint2D end);
+
+
+    virtual bool HitTest(ScenePoint2D p) ORTHANC_OVERRIDE;
+    virtual void Highlight(ScenePoint2D p) ORTHANC_OVERRIDE;
+    virtual void ResetHighlightState() ORTHANC_OVERRIDE;
+    virtual boost::shared_ptr<IFlexiblePointerTracker> CreateEditionTracker(const PointerEvent& e) ORTHANC_OVERRIDE;
+    virtual boost::shared_ptr<MeasureToolMemento> GetMemento() const ORTHANC_OVERRIDE;
+    virtual void SetMemento(boost::shared_ptr<MeasureToolMemento>) ORTHANC_OVERRIDE;
+    virtual std::string GetDescription() ORTHANC_OVERRIDE;
+
+    enum LineHighlightArea
+    {
+      LineHighlightArea_None,
+      LineHighlightArea_Start,
+      LineHighlightArea_End,
+      LineHighlightArea_Segment
+    };
+
+
+    LineHighlightArea LineHitTest(ScenePoint2D p);
+
+  private:
+    LineMeasureTool(boost::shared_ptr<IViewport> viewport);
+
+    virtual void        RefreshScene() ORTHANC_OVERRIDE;
+    void                RemoveFromScene();
+    void                SetLineHighlightArea(LineHighlightArea area);
+
+  private:
+
+  private:
+    ScenePoint2D                    start_;
+    ScenePoint2D                    end_;
+    boost::shared_ptr<LayerHolder>  layerHolder_;
+    int                             baseLayerIndex_;
+    LineHighlightArea               lineHighlightArea_;
+  };
+
+  class LineMeasureToolMemento : public MeasureToolMemento
+  {
+  public:
+    ScenePoint2D                    start_;
+    ScenePoint2D                    end_;
+  };
+
+}
+