--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/OrthancStone/Sources/Scene2D/Internals/OpenGLBasicPolylineRenderer.cpp	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/>.
+ **/
+
+
+#include "OpenGLBasicPolylineRenderer.h"
+
+#include "../../OpenGL/OpenGLIncludes.h"
+
+namespace OrthancStone
+{
+  namespace Internals
+  {
+    OpenGLBasicPolylineRenderer::OpenGLBasicPolylineRenderer(OpenGL::IOpenGLContext& context,
+                                                             const PolylineSceneLayer& layer) :
+      context_(context)
+    {
+      layer_.Copy(layer);
+    }
+
+    void OpenGLBasicPolylineRenderer::Render(const AffineTransform2D& transform)
+    {
+      if (!context_.IsContextLost())
+      {
+        AffineTransform2D t = AffineTransform2D::Combine(
+          AffineTransform2D::CreateOpenGLClipspace(context_.GetCanvasWidth(), context_.GetCanvasHeight()),
+          transform);
+
+        glUseProgram(0);
+
+        glBegin(GL_LINES);
+
+        for (size_t i = 0; i < layer_.GetChainsCount(); i++)
+        {
+          const Color& color = layer_.GetColor(i);
+          glColor3ub(color.GetRed(), color.GetGreen(), color.GetBlue());
+
+          const PolylineSceneLayer::Chain& chain = layer_.GetChain(i);
+
+          if (chain.size() > 1)
+          {
+            ScenePoint2D previous = chain[0].Apply(t);
+
+            for (size_t j = 1; j < chain.size(); j++)
+            {
+              ScenePoint2D p = chain[j].Apply(t);
+
+              glVertex2f(static_cast<GLfloat>(previous.GetX()),
+                static_cast<GLfloat>(previous.GetY()));
+              glVertex2f(static_cast<GLfloat>(p.GetX()),
+                static_cast<GLfloat>(p.GetY()));
+
+              previous = p;
+            }
+
+            if (layer_.IsClosedChain(i))
+            {
+              ScenePoint2D p = chain[0].Apply(t);
+
+              glVertex2f(static_cast<GLfloat>(previous.GetX()),
+                static_cast<GLfloat>(previous.GetY()));
+              glVertex2f(static_cast<GLfloat>(p.GetX()),
+                static_cast<GLfloat>(p.GetY()));
+            }
+          }
+        }
+
+        glEnd();
+      }
+    }
+
+
+    void OpenGLBasicPolylineRenderer::Update(const ISceneLayer& layer)
+    {
+      layer_.Copy(dynamic_cast<const PolylineSceneLayer&>(layer));
+    }
+  }
+}