--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/OrthancStone/Sources/StoneException.h	Tue Jul 07 16:21:02 2020 +0200
@@ -0,0 +1,148 @@
+/**
+ * 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/>.
+ **/
+
+
+#pragma once
+
+#include "Toolbox/LinearAlgebra.h"
+
+#include <OrthancException.h>
+
+#include <boost/lexical_cast.hpp>
+
+#include <iostream>
+
+namespace OrthancStone
+{
+  enum ErrorCode
+  {
+    ErrorCode_Success,
+    ErrorCode_OrthancError, // this StoneException is actually an OrthancException with an Orthanc error code
+    ErrorCode_ApplicationException, // this StoneException is specific to an application (and should have its own internal error code)
+    ErrorCode_NotImplemented, // case not implemented
+
+    ErrorCode_CanOnlyAddOneLayerAtATime,
+    ErrorCode_CommandJsonInvalidFormat,
+    ErrorCode_WebGLContextLost,
+    ErrorCode_Last
+  };
+
+
+
+  class StoneException
+  {
+  protected:
+    OrthancStone::ErrorCode     errorCode_;
+
+  public:
+    explicit StoneException(ErrorCode errorCode) :
+      errorCode_(errorCode)
+    {
+    }
+
+    virtual ~StoneException() {}
+
+    ErrorCode GetErrorCode() const
+    {
+      return errorCode_;
+    }
+
+    virtual const char* What() const
+    {
+      switch (errorCode_)
+      {
+      case ErrorCode_Success:
+        return "Success";
+        break;
+      case ErrorCode_OrthancError:
+        return "OrthancError";
+        break;
+      case ErrorCode_ApplicationException:
+        return "ApplicationException";
+        break;
+      case ErrorCode_NotImplemented:
+        return "NotImplemented";
+        break;
+      case ErrorCode_CanOnlyAddOneLayerAtATime:
+        return "CanOnlyAddOneLayerAtATime";
+        break;
+      case ErrorCode_CommandJsonInvalidFormat:
+        return "CommandJsonInvalidFormat";
+        break;
+      case ErrorCode_WebGLContextLost:
+        return "WebGLContextLost";
+        break;
+      case ErrorCode_Last:
+        return "Last";
+        break;
+      default:
+        return "Unknown exception code!";
+      }
+    }
+  };
+}
+
+// See https://isocpp.org/wiki/faq/misc-technical-issues#macros-with-multi-stmts
+// (or google "Multiple lines macro C++ faq lite" if link is dead)
+#define ORTHANC_ASSERT2(cond,streamChainMessage) \
+    if (!(cond)) { \
+      std::stringstream sst; \
+      sst << "Assertion failed. Condition = \"" #cond "\" Message = \"" << streamChainMessage << "\""; \
+      std::string sstr = sst.str(); \
+      throw ::Orthanc::OrthancException(::Orthanc::ErrorCode_InternalError,sstr.c_str()); \
+    } else (void)0
+
+#define ORTHANC_ASSERT1(cond) \
+    if (!(cond)) { \
+      std::stringstream sst; \
+      sst << "Assertion failed. Condition = \"" #cond "\""; \
+      std::string sstr = sst.str(); \
+      throw ::Orthanc::OrthancException(::Orthanc::ErrorCode_InternalError,sstr.c_str()); \
+    } else (void)0
+
+# define ORTHANC_EXPAND( x ) x 
+# define GET_ORTHANC_ASSERT(_1,_2,NAME,...) NAME
+# define ORTHANC_ASSERT(...) ORTHANC_EXPAND(GET_ORTHANC_ASSERT(__VA_ARGS__, ORTHANC_ASSERT2, ORTHANC_ASSERT1, UNUSED)(__VA_ARGS__))
+
+
+
+
+
+/*
+Explanation:
+
+ORTHANC_ASSERT(a)
+ORTHANC_EXPAND(GET_ORTHANC_ASSERT(a, ORTHANC_ASSERT2, ORTHANC_ASSERT1, UNUSED)(a))
+ORTHANC_EXPAND(ORTHANC_ASSERT1(a))
+ORTHANC_ASSERT1(a)
+
+ORTHANC_ASSERT(a,b)
+ORTHANC_EXPAND(GET_ORTHANC_ASSERT(a, b, ORTHANC_ASSERT2, ORTHANC_ASSERT1, UNUSED)(a,b))
+ORTHANC_EXPAND(ORTHANC_ASSERT2(a,b))
+ORTHANC_ASSERT2(a,b)
+
+Note: ORTHANC_EXPAND is required for some older compilers (MS v100 cl.exe )
+*/
+
+
+
+
+
+