solve existing warnings in msvc build process

Author: g-abilio

CMakeLists.txt

@@ -165,6 +165,9 @@ target_compile_definitions(QtNodes
     QT_NO_KEYWORDS
 )
 
+if(MSVC)
+  string(REGEX REPLACE "/W[0-4]" "" CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}")
+endif()
 
 target_compile_options(QtNodes
   PRIVATE

src/AbstractGraphModel.cpp

@@ -40,7 +40,9 @@ void AbstractGraphModel::portsAboutToBeDeleted(NodeId const nodeId,
             // Erases the information about the port on one side;
             auto c = makeIncompleteConnectionId(connectionId, portType);
 
-            c = makeCompleteConnectionId(c, nodeId, portIndex - nRemovedPorts);
+            c = makeCompleteConnectionId(c,
+                                         nodeId,
+                                         portIndex - static_cast<QtNodes::PortIndex>(nRemovedPorts));
 
             _shiftedByDynamicPortsConnections.push_back(c);
 
@@ -84,7 +86,9 @@ void AbstractGraphModel::portsAboutToBeInserted(NodeId const nodeId,
             // Erases the information about the port on one side;
             auto c = makeIncompleteConnectionId(connectionId, portType);
 
-            c = makeCompleteConnectionId(c, nodeId, portIndex + nNewPorts);
+            c = makeCompleteConnectionId(c,
+                                         nodeId,
+                                         portIndex + static_cast<QtNodes::PortIndex>(nNewPorts));
 
             _shiftedByDynamicPortsConnections.push_back(c);