--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/OrthancStone/Sources/Scene2D/GrayscaleStyleConfigurator.cpp	Tue Jul 07 16:21:02 2020 +0200
@@ -0,0 +1,129 @@
+/**
+ * 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 "GrayscaleStyleConfigurator.h"
+
+#include "FloatTextureSceneLayer.h"
+
+#include <OrthancException.h>
+
+namespace OrthancStone
+{
+  GrayscaleStyleConfigurator::GrayscaleStyleConfigurator() :
+    revision_(0),
+    linearInterpolation_(false),
+    hasWindowingOverride_(false),
+    customWindowWidth_(0),
+    customWindowCenter_(0),
+    hasInversionOverride_(false),
+    inverted_(false),
+    applyLog_(false)
+  {
+  }
+
+  void GrayscaleStyleConfigurator::SetWindowing(ImageWindowing windowing)
+  {
+    hasWindowingOverride_ = true;
+    windowing_ = windowing;
+    revision_++;
+  }
+
+  void GrayscaleStyleConfigurator::SetCustomWindowing(float windowCenter, float windowWidth)
+  {
+    SetWindowing(ImageWindowing_Custom);
+    customWindowCenter_ = windowCenter;
+    customWindowWidth_ = windowWidth;
+  }
+
+  void GrayscaleStyleConfigurator::GetCustomWindowing(float& windowCenter, float& windowWidth) const
+  {
+    windowCenter = customWindowCenter_;
+    windowWidth  = customWindowWidth_;
+  }
+
+  void GrayscaleStyleConfigurator::SetInverted(bool inverted)
+  {
+    hasInversionOverride_ = true;
+    inverted_ = inverted;
+    revision_++;
+  }
+
+  void GrayscaleStyleConfigurator::SetLinearInterpolation(bool enabled)
+  {
+    linearInterpolation_ = enabled;
+    revision_++;
+  }
+
+  void GrayscaleStyleConfigurator::SetApplyLog(bool apply)
+  {
+    applyLog_ = apply;
+    revision_++;
+  }
+
+  TextureBaseSceneLayer* GrayscaleStyleConfigurator::CreateTextureFromImage(
+    const Orthanc::ImageAccessor& image) const
+  {
+    throw Orthanc::OrthancException(Orthanc::ErrorCode_NotImplemented);
+  }
+
+  TextureBaseSceneLayer* GrayscaleStyleConfigurator::CreateTextureFromDicom(
+    const Orthanc::ImageAccessor& frame,
+    const DicomInstanceParameters& parameters) const
+  {
+    std::unique_ptr<TextureBaseSceneLayer> layer(parameters.CreateTexture(frame));
+
+    if (layer.get() == NULL ||
+        layer->GetTexture().GetFormat() != Orthanc::PixelFormat_Float32)
+    {
+      throw Orthanc::OrthancException(Orthanc::ErrorCode_IncompatibleImageFormat);
+    }
+    else
+    {
+      return layer.release();
+    }
+  }
+
+  void GrayscaleStyleConfigurator::ApplyStyle(ISceneLayer& layer) const
+  {
+    FloatTextureSceneLayer& l = dynamic_cast<FloatTextureSceneLayer&>(layer);
+    
+    l.SetLinearInterpolation(linearInterpolation_);
+
+    if (hasWindowingOverride_)
+    {
+      if (windowing_ != ImageWindowing_Custom)
+      {
+        l.SetWindowing(windowing_);
+      }
+      else
+      {
+        l.SetCustomWindowing(customWindowCenter_, customWindowWidth_);
+      }
+    }
+
+    if (hasInversionOverride_)
+    {
+      l.SetInverted(inverted_);
+    }
+
+    l.SetApplyLog(applyLog_);
+  }
+}