[librender] Add stduuid dependency as submodule

.gitmodules

+[submodule "stduuid"]
+	path = src/libRender/Dependencies/stduuid
+	url = git@github.com:MathiasPaulin/stduuid.git

src/libRender/CMakeLists.txt

@@ -178,6 +178,14 @@ set(resources
     Resources/RadiumNBR/RenderGraphs/fullfeaturerenderer.flow
     )
 
+# std::uuid dependency
+# Note, follow the progress of integration of uuid generator in the C++ std lib. When supported by std, remove this dependency
+set(UUID_BUILD_TESTS OFF)
+set(UUID_SYSTEM_GENERATOR ON)
+set(UUID_USING_CXX20_SPAN OFF) # change this when going to C++20 as language standard for Radium libs
+add_subdirectory(Dependencies/stduuid)
+# TODO verify correct installation and usage in Config.cmake.in
+
 
 # Our library project uses these sources and headers.
 add_library(
@@ -200,6 +208,7 @@ target_link_libraries(
     PUBLIC
     Radium::Core
     Radium::Engine
+    stduuid
 )
 
 if(CMAKE_BUILD_TYPE STREQUAL "Debug")

src/libRender/Config.cmake.in

@@ -28,6 +28,7 @@ if ( NOT Radium_FOUND)
 endif()
 
 if (NBR_FOUND)
+    # TODO : search for installed stduuid
     include("${CMAKE_CURRENT_LIST_DIR}/NBRTargets.cmake" )
     radium_exported_resources(
         TARGET RadiumNBR::NBR

stduuid @ 5c538cca

+Subproject commit 5c538cca02932aa0266659661d5b4726f3a317c7

src/libRender/RadiumNBR/NodeGraph/Node.cpp

@@ -15,7 +15,8 @@ void Node::fromJson( const nlohmann::json& data ) {
 #endif
 
     // get the common content of the Node from the json data
-    m_uuid                   = data["id"];
+    std::string struuid = data["id"];
+    m_uuid                   = uuids::uuid::from_string(struuid).value();
     std::string readTypeName = data["model"]["name"];
     if ( readTypeName != m_typeName )
     {
@@ -37,7 +38,8 @@ void Node::fromJson( const nlohmann::json& data ) {
 
 void Node::toJson( nlohmann::json& data ) const {
     // write the common content of the Node to the json data
-    data["id"] = m_uuid;
+    std::string struuid = "{" + uuids::to_string(m_uuid) + "}";
+    data["id"] = struuid;
 
     nlohmann::json model;
     model["instance"] = m_instanceName;

src/libRender/RadiumNBR/NodeGraph/Node.hpp

@@ -5,6 +5,8 @@
 
 #include <RadiumNBR/externals/json.hpp>
 
+#include <uuid.h>
+
 #include <cstdint>
 #include <iostream>
 #include <memory>
@@ -194,7 +196,8 @@ class NodeBasedRenderer_LIBRARY_API Node
 
     /// The uuid of the node (TODO, use https://github.com/mariusbancila/stduuid instead of a
     /// string)
-    std::string m_uuid;
+    //std::string m_uuid;
+    uuids::uuid m_uuid;
     /// The type name of the node
     std::string m_typeName;
     /// The instance name of the node