--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Framework/Deprecated/Widgets/CairoWidget.cpp	Tue May 21 14:27:35 2019 +0200
@@ -0,0 +1,101 @@
+/**
+ * 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 "CairoWidget.h"
+
+#include <Core/Images/ImageProcessing.h>
+#include <Core/OrthancException.h>
+
+namespace Deprecated
+{
+  static bool IsAligned(const Orthanc::ImageAccessor& target)
+  {
+    // TODO
+    return true;
+  }
+
+  CairoWidget::CairoWidget(const std::string& name) :
+    WidgetBase(name)
+  {
+  }
+
+  void CairoWidget::SetSize(unsigned int width,
+                            unsigned int height)
+  {
+    surface_.SetSize(width, height, false /* no alpha */);
+  }
+  
+
+  bool CairoWidget::Render(Orthanc::ImageAccessor& target)
+  {
+    // Don't call the base class here, as
+    // "ClearBackgroundCairo()" is a faster alternative
+
+    if (IsAligned(target))
+    {
+      OrthancStone::CairoSurface surface(target, false /* no alpha */);
+      OrthancStone::CairoContext context(surface);
+      ClearBackgroundCairo(context);
+      return RenderCairo(context);
+    }
+    else
+    {
+      OrthancStone::CairoContext context(surface_);
+      ClearBackgroundCairo(context);
+
+      if (RenderCairo(context))
+      {
+        Orthanc::ImageAccessor surface;
+        surface_.GetReadOnlyAccessor(surface);
+        Orthanc::ImageProcessing::Copy(target, surface);
+        return true;
+      }
+      else
+      {
+        return false;
+      }
+    }
+  }
+
+
+  void CairoWidget::RenderMouseOver(Orthanc::ImageAccessor& target,
+                                    int x,
+                                    int y)
+  {
+    if (IsAligned(target))
+    {
+      OrthancStone::CairoSurface surface(target, false /* no alpha */);
+      OrthancStone::CairoContext context(surface);
+      RenderMouseOverCairo(context, x, y);
+    }
+    else
+    {
+      Orthanc::ImageAccessor accessor;
+      surface_.GetWriteableAccessor(accessor);
+      Orthanc::ImageProcessing::Copy(accessor, target);
+
+      OrthancStone::CairoContext context(surface_);
+      RenderMouseOverCairo(context, x, y);
+
+      Orthanc::ImageProcessing::Copy(target, accessor);
+    }
+  }
+}