--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/OrthancStone/Sources/Volumes/VolumeSceneLayerSource.h	Tue Jul 07 16:21:02 2020 +0200
@@ -0,0 +1,86 @@
+/**
+ * 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/Scene2D.h"
+#include "IVolumeSlicer.h"
+
+#include <boost/shared_ptr.hpp>
+
+namespace OrthancStone
+{
+  class IViewport;
+  /**
+     This class applies one "volume slicer" to a "3D volume", in order
+     to create one "2D scene layer" that will be set onto the "2D
+     scene". The style of the layer can be fine-tuned using a "layer
+     style configurator". The class only changes the layer if the
+     cutting plane has been modified since the last call to "Update()".
+   */
+  class VolumeSceneLayerSource : public boost::noncopyable
+  {
+  private:
+    boost::shared_ptr<OrthancStone::IViewport>  viewport_;
+    int                                       layerDepth_;
+    boost::shared_ptr<IVolumeSlicer>          slicer_;
+    std::unique_ptr<ILayerStyleConfigurator>  configurator_;
+    std::unique_ptr<CoordinateSystem3D>       lastPlane_;
+    uint64_t                                  lastRevision_;
+    uint64_t                                  lastConfiguratorRevision_;
+    bool                                      layerInScene_;
+
+    void ClearLayer();
+
+  public:
+    VolumeSceneLayerSource(boost::shared_ptr<OrthancStone::IViewport>  viewport,
+                           int layerDepth,
+                           const boost::shared_ptr<IVolumeSlicer>& slicer);
+
+    ~VolumeSceneLayerSource();
+
+    const IVolumeSlicer& GetSlicer() const
+    {
+      return *slicer_;
+    }
+
+    void RemoveConfigurator();
+
+    void SetConfigurator(ILayerStyleConfigurator* configurator);
+
+    bool HasConfigurator() const
+    {
+      return configurator_.get() != NULL;
+    }
+
+    ILayerStyleConfigurator& GetConfigurator() const;
+
+    /**
+    Make sure the Scene2D is protected from concurrent accesses before 
+    calling this method.
+
+    If the scene that has been supplied to the ctor is part of an IViewport, 
+    you can lock the whole viewport data (including scene) by means of the 
+    IViewport::Lock method.
+    */ 
+    void Update(const CoordinateSystem3D& plane); 
+  };
+}