--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Applications/Sdl/BasicSdlApplicationContext.cpp	Tue Jun 12 17:21:15 2018 +0200
@@ -0,0 +1,81 @@
+/**
+ * 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 "BasicSdlApplicationContext.h"
+
+namespace OrthancStone
+{
+  IWidget& BasicSdlApplicationContext::SetCentralWidget(IWidget* widget)   // Takes ownership
+  {
+    centralViewport_.SetCentralWidget(widget);
+    return *widget;
+  }
+
+
+  void BasicSdlApplicationContext::UpdateThread(BasicSdlApplicationContext* that)
+  {
+    while (!that->stopped_)
+    {
+      {
+        ViewportLocker locker(*that);
+        locker.GetViewport().UpdateContent();
+      }
+      
+      boost::this_thread::sleep(boost::posix_time::milliseconds(that->updateDelay_));
+    }
+  }
+  
+
+  BasicSdlApplicationContext::BasicSdlApplicationContext(Orthanc::WebServiceParameters& orthanc) :
+    oracle_(viewportMutex_, 4),  // Use 4 threads to download
+    //oracle_(viewportMutex_, 1),  // Disable threading to be reproducible
+    webService_(oracle_, orthanc),
+    stopped_(true),
+    updateDelay_(100)   // By default, 100ms between each refresh of the content
+  {
+    srand(time(NULL)); 
+  }
+
+
+  void BasicSdlApplicationContext::Start()
+  {
+    oracle_.Start();
+
+    if (centralViewport_.HasUpdateContent())
+    {
+      stopped_ = false;
+      updateThread_ = boost::thread(UpdateThread, this);
+    }
+  }
+
+
+  void BasicSdlApplicationContext::Stop()
+  {
+    stopped_ = true;
+    
+    if (updateThread_.joinable())
+    {
+      updateThread_.join();
+    }
+    
+    oracle_.Stop();
+  }
+}