--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Framework/Messaging/MessagingToolbox.h	Fri Oct 14 15:34:11 2016 +0200
@@ -0,0 +1,97 @@
+/**
+ * Stone of Orthanc
+ * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics
+ * Department, University Hospital of Liege, Belgium
+ *
+ * This program is free software: you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * In addition, as a special exception, the copyright holders of this
+ * program give permission to link the code of its release with the
+ * OpenSSL project's "OpenSSL" library (or with modified versions of it
+ * that use the same license as the "OpenSSL" library), and distribute
+ * the linked executables. You must obey the GNU General Public License
+ * in all respects for all of the code used other than "OpenSSL". If you
+ * modify file(s) with this exception, you may extend this exception to
+ * your version of the file(s), but you are not obligated to do so. If
+ * you do not wish to do so, delete this exception statement from your
+ * version. If you delete this exception statement from all source files
+ * in the program, then also delete it here.
+ * 
+ * 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
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ **/
+
+
+#pragma once
+
+#include "IOrthancConnection.h"
+
+#include "../Enumerations.h"
+#include "../Orthanc/Core/Images/ImageAccessor.h"
+
+#include <json/value.h>
+
+#if defined(__native_client__)
+#  include <ppapi/cpp/core.h>
+#else
+#  include <boost/date_time/posix_time/ptime.hpp>
+#endif
+
+namespace OrthancStone
+{
+  namespace MessagingToolbox
+  {
+    class Timestamp
+    {
+    private:
+#if defined(__native_client__)
+      PP_TimeTicks   time_;
+#else
+      boost::posix_time::ptime   time_;
+#endif
+
+    public:
+      Timestamp();
+
+#if defined(__native_client__)
+      static void Initialize(pp::Core* core);
+#endif
+
+      int GetMillisecondsSince(const Timestamp& other);
+    };
+
+
+    void ParseJson(Json::Value& target,
+                   const std::string& source);
+
+    void RestApiGet(Json::Value& target,
+                    IOrthancConnection& orthanc,
+                    const std::string& uri);
+
+    bool HasWebViewerInstalled(IOrthancConnection& orthanc);
+
+    bool CheckOrthancVersion(IOrthancConnection& orthanc);
+
+    // This downloads the image from Orthanc and keeps its pixel
+    // format unchanged (will be either Grayscale8, Grayscale16,
+    // SignedGrayscale16, or RGB24)
+    Orthanc::ImageAccessor* DecodeFrame(IOrthancConnection& orthanc,
+                                        const std::string& instance,
+                                        unsigned int frame,
+                                        Orthanc::PixelFormat targetFormat);
+
+    Orthanc::ImageAccessor* DecodeJpegFrame(IOrthancConnection& orthanc,
+                                            const std::string& instance,
+                                            unsigned int frame,
+                                            unsigned int quality,
+                                            Orthanc::PixelFormat targetFormat);
+  }
+}