--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Framework/Radiography/RadiographySceneReader.cpp	Thu Nov 29 15:11:19 2018 +0100
@@ -0,0 +1,112 @@
+/**
+ * Stone of Orthanc
+ * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics
+ * Department, University Hospital of Liege, Belgium
+ * Copyright (C) 2017-2018 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 "RadiographySceneReader.h"
+
+#include <Core/Images/FontRegistry.h>
+#include <Core/Images/PngReader.h>
+#include <Core/OrthancException.h>
+#include <Core/Toolbox.h>
+
+namespace OrthancStone
+{
+  void RadiographySceneReader::Read(const Json::Value& input)
+  {
+    unsigned int version = input["version"].asUInt();
+
+    if (version != 1)
+      throw Orthanc::OrthancException(Orthanc::ErrorCode_NotImplemented);
+
+    for(size_t layerIndex = 0; layerIndex < input["layers"].size(); layerIndex++)
+    {
+      const Json::Value& jsonLayer = input["layers"][(int)layerIndex];
+      RadiographyLayer::Geometry geometry;
+
+      if (jsonLayer["type"].asString() == "dicom")
+      {
+        ReadLayerGeometry(geometry, jsonLayer);
+        scene_.LoadDicomFrame(orthancApiClient_, jsonLayer["instanceId"].asString(), jsonLayer["frame"].asUInt(), true, &geometry);
+      }
+      else if (jsonLayer["type"].asString() == "text")
+      {
+        if (fontRegistry_ == NULL || fontRegistry_->GetSize() == 0)
+        {
+          throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls); // you must provide a FontRegistry if you need to re-create text layers.
+        }
+
+        ReadLayerGeometry(geometry, jsonLayer);
+        const Orthanc::Font* font = fontRegistry_->FindFont(jsonLayer["fontName"].asString());
+        if (font == NULL) // if not found, take the first font in the registry
+        {
+          font = &(fontRegistry_->GetFont(0));
+        }
+        scene_.LoadText(*font, jsonLayer["text"].asString(), &geometry);
+      }
+      else if (jsonLayer["type"].asString() == "alpha")
+      {
+        ReadLayerGeometry(geometry, jsonLayer);
+
+        const std::string& pngContentBase64 = jsonLayer["content"].asString();
+        std::string pngContent;
+        std::string mimeType;
+        Orthanc::Toolbox::DecodeDataUriScheme(mimeType, pngContent, pngContentBase64);
+
+        std::auto_ptr<Orthanc::ImageAccessor>  image;
+        if (mimeType == "image/png")
+        {
+          image.reset(new Orthanc::PngReader());
+          dynamic_cast<Orthanc::PngReader*>(image.get())->ReadFromMemory(pngContent);
+        }
+        else
+          throw Orthanc::OrthancException(Orthanc::ErrorCode_NotImplemented);
+
+        RadiographyAlphaLayer& layer = dynamic_cast<RadiographyAlphaLayer&>(scene_.LoadAlphaBitmap(image.release(), &geometry));
+
+        if (!jsonLayer["isUsingWindowing"].asBool())
+        {
+          layer.SetForegroundValue((float)(jsonLayer["foreground"].asDouble()));
+        }
+      }
+      else
+        throw Orthanc::OrthancException(Orthanc::ErrorCode_NotImplemented);
+    }
+  }
+
+  void RadiographySceneReader::ReadLayerGeometry(RadiographyLayer::Geometry& geometry, const Json::Value& jsonLayer)
+  {
+    {// crop
+      unsigned int x, y, width, height;
+      if (jsonLayer["crop"]["hasCrop"].asBool())
+      {
+        x = jsonLayer["crop"]["x"].asUInt();
+        y = jsonLayer["crop"]["y"].asUInt();
+        width = jsonLayer["crop"]["width"].asUInt();
+        height = jsonLayer["crop"]["height"].asUInt();
+        geometry.SetCrop(x, y, width, height);
+      }
+    }
+
+    geometry.SetAngle(jsonLayer["angle"].asDouble());
+    geometry.SetResizeable(jsonLayer["isResizable"].asBool());
+    geometry.SetPan(jsonLayer["pan"]["x"].asDouble(), jsonLayer["pan"]["y"].asDouble());
+    geometry.SetPixelSpacing(jsonLayer["pixelSpacing"]["x"].asDouble(), jsonLayer["pixelSpacing"]["y"].asDouble());
+  }
+}