Initial working sequence diagram

src/uml/sequence_diagram_model.h

@@ -20,16 +20,28 @@ struct message {
     std::string from;
     std::string from_usr;
     std::string to;
+    std::string to_usr;
     std::string message;
+    std::string return_type;
     unsigned int line;
 };
 
+struct activity {
+    std::string usr;
+    std::string from;
+    std::vector<message> messages;
+};
+
 struct diagram {
+    bool started{false};
     std::string name;
-    std::vector<message> sequence;
+
+    //std::map<std::string, activity> sequences;
+    std::map<std::string, activity> sequences;
 
     void sort()
     {
+        /*
         std::sort(sequence.begin(), sequence.end(),
             [](const auto &a, const auto &b) -> bool {
                 if (a.from_usr == b.from_usr)
@@ -37,6 +49,7 @@ struct diagram {
 
                 return a.from_usr > b.from_usr;
             });
+            */
     }
 };
 }