--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Framework/SmartLoader.h	Tue Jul 17 14:43:42 2018 +0200
@@ -0,0 +1,49 @@
+/**
+ * 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/>.
+ **/
+
+
+#pragma once
+
+#include "Layers/ILayerSource.h"
+#include "Messages/IObservable.h"
+#include "../Platforms/Generic/OracleWebService.h"
+
+namespace OrthancStone
+{
+  class SmartLoader : public IObservable, IObserver
+  {
+    SliceImageQuality imageQuality_;
+    IWebService& webService_;
+
+  public:
+    SmartLoader(MessageBroker& broker, IWebService& webService);  // TODO: add maxPreloadStorageSizeInBytes
+
+    virtual void HandleMessage(IObservable& from, const IMessage& message);
+
+    void PreloadStudy(const std::string studyId) {/* TODO */}
+    void PreloadSeries(const std::string seriesId) {/* TODO */}
+
+    void SetImageQuality(SliceImageQuality imageQuality) { imageQuality_ = imageQuality; }
+
+    ILayerSource* GetFrame(const std::string& instanceId, unsigned int frame);
+
+  };
+
+}