--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Framework/Deprecated/Layers/CircleMeasureTracker.cpp	Tue May 21 14:27:35 2019 +0200
@@ -0,0 +1,106 @@
+/**
+ * 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/>.
+ **/
+
+
+#include "CircleMeasureTracker.h"
+
+#include <stdio.h>
+#include <boost/math/constants/constants.hpp>
+
+namespace Deprecated
+{
+  CircleMeasureTracker::CircleMeasureTracker(IStatusBar* statusBar,
+                                             const OrthancStone::CoordinateSystem3D& slice,
+                                             double x, 
+                                             double y,
+                                             uint8_t red,
+                                             uint8_t green,
+                                             uint8_t blue,
+                                             const Orthanc::Font& font) :
+    statusBar_(statusBar),
+    slice_(slice),
+    x1_(x),
+    y1_(y),
+    x2_(x),
+    y2_(y),
+    font_(font)
+  {
+    color_[0] = red;
+    color_[1] = green;
+    color_[2] = blue;
+  }
+    
+
+  void CircleMeasureTracker::Render(OrthancStone::CairoContext& context,
+                                    double zoom)
+  {
+    double x = (x1_ + x2_) / 2.0;
+    double y = (y1_ + y2_) / 2.0;
+
+    OrthancStone::Vector tmp;
+    OrthancStone::LinearAlgebra::AssignVector(tmp, x2_ - x1_, y2_ - y1_);
+    double r = boost::numeric::ublas::norm_2(tmp) / 2.0;
+
+    context.SetSourceColor(color_[0], color_[1], color_[2]);
+
+    cairo_t* cr = context.GetObject();
+    cairo_save(cr);
+    cairo_set_line_width(cr, 2.0 / zoom);
+    cairo_translate(cr, x, y);
+    cairo_arc(cr, 0, 0, r, 0, 2.0 * boost::math::constants::pi<double>());
+    cairo_stroke_preserve(cr);
+    cairo_stroke(cr);
+    cairo_restore(cr);
+
+    context.DrawText(font_, FormatRadius(), x, y, OrthancStone::BitmapAnchor_Center);
+  }
+    
+
+  double CircleMeasureTracker::GetRadius() const  // In millimeters
+  {
+    OrthancStone::Vector a = slice_.MapSliceToWorldCoordinates(x1_, y1_);
+    OrthancStone::Vector b = slice_.MapSliceToWorldCoordinates(x2_, y2_);
+    return boost::numeric::ublas::norm_2(b - a) / 2.0;
+  }
+
+
+  std::string CircleMeasureTracker::FormatRadius() const
+  {
+    char buf[64];
+    sprintf(buf, "%0.01f cm", GetRadius() / 10.0);
+    return buf;
+  }
+
+  void CircleMeasureTracker::MouseMove(int displayX,
+                                       int displayY,
+                                       double x,
+                                       double y,
+                                       const std::vector<Touch>& displayTouches,
+                                       const std::vector<Touch>& sceneTouches)
+  {
+    x2_ = x;
+    y2_ = y;
+
+    if (statusBar_ != NULL)
+    {
+      statusBar_->SetMessage("Circle radius: " + FormatRadius());
+    }
+  }
+}